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              <image:caption>volume of a cone</image:caption>
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              <image:caption>Pay Now</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/Triangle-with-legs-4-and-12.png</image:loc>
              <image:caption>triangle</image:caption>
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            <loc>https://www.basic-mathematics.com/12-pieces-of-chalk.html</loc>
            <lastmod>2015-05-05T20:06:03.935804Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/3-circle-venn-diagram.html</loc>
            <lastmod>2025-07-17T09:39:55.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/factors-of-30-40-and-100.png</image:loc>
              <image:caption>3-circle Venn diagram showing the relationships between the factors of 30, 40, and 100</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/3-circle-venn-diagram.png</image:loc>
              <image:caption>3-circle Venn diagram</image:caption>
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            <loc>https://www.basic-mathematics.com/30-60-90-triangle.html</loc>
            <lastmod>2023-04-03T21:25:23.000000Z</lastmod>
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              <image:caption>30-60-90 triangle</image:caption>
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              <image:caption>30-60-90 triangle and escalator</image:caption>
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              <image:caption>Base of a 30-60-90 triangle</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/two-30-60-90-triangles.jpg</image:loc>
              <image:caption>Two 30-60-90 triangles</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/warning-sign-turned-into-two-30-60-90-triangles.jpg</image:loc>
              <image:caption>warning sign turned into two 30-60-90 triangles</image:caption>
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              <image:caption>Warning sign</image:caption>
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            <loc>https://www.basic-mathematics.com/30-second-math-iq-challenge.html</loc>
            <lastmod>2025-09-11T15:25:42.000000Z</lastmod>
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      <url>
            <loc>https://www.basic-mathematics.com/3rd-grade-math-concepts.html</loc>
            <lastmod>2024-08-28T08:58:07.000000Z</lastmod>
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              <image:caption>Addition algorithm</image:caption>
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              <image:caption>Commutative property of multiplication</image:caption>
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              <image:caption>Equivalent fractions</image:caption>
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              <image:caption>Pentagon</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/paperclip.png</image:loc>
              <image:caption>mass of a paperclip is about 1 gram</image:caption>
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              <image:caption>Order of operations</image:caption>
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              <image:caption>Product</image:caption>
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              <image:caption>Perimeter of a trapezoid</image:caption>
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              <image:caption>1 out of 4</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/illustration-of-the-commutative-property.png</image:loc>
              <image:caption>Illustration of the commutative property</image:caption>
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              <image:caption>Quotient</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/find-area.png</image:loc>
              <image:caption>Area</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/divisor.png</image:loc>
              <image:caption>Divisor</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/12-divided-by-3.png</image:loc>
              <image:caption>12 divided by 3</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/parallel.png</image:loc>
              <image:caption>Parallel lines</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/nearest-tens.png</image:loc>
              <image:caption>Nearest 10 for 28</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/unit-fractions.png</image:loc>
              <image:caption>Unit fractions</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factors.png</image:loc>
              <image:caption>factors</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/three-fourths.png</image:loc>
              <image:caption>Three fourths</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/1-inch.png</image:loc>
              <image:caption>1 inch</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/segment1.png</image:loc>
              <image:caption>Segment</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/algorithm-for-addition.png</image:loc>
              <image:caption>Algorithm for adding  28 and 14</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/fact-family.png</image:loc>
              <image:caption>Fact family</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/dividend.png</image:loc>
              <image:caption>Dividend</image:caption>
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            <lastmod>2024-08-28T09:18:43.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/baseball-field.jpg</image:loc>
              <image:caption>Baseball field</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/baseball-field1.jpg</image:loc>
              <image:caption>Baseball field</image:caption>
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              <image:caption>45-45-90 triangle</image:caption>
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              <image:caption>45-45-90 triangle</image:caption>
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            <lastmod>2024-08-28T11:59:41.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/algorithm.png</image:loc>
              <image:caption>Algorithm for multiplication</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/0.28.png</image:loc>
              <image:caption>0.28</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/equivalent-fractions.png</image:loc>
              <image:caption>Equivalent fractions</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/example-of-a-mixed-number.png</image:loc>
              <image:caption>Example of  a mixed number</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/right-triangle.png</image:loc>
              <image:caption>Right triangle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Protractor.png</image:loc>
              <image:caption>Protractor</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/add-mixed-numbers.png</image:loc>
              <image:caption>Add mixed numbers</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/example-of-a-ray.png</image:loc>
              <image:caption>Ray</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/decimal-point.png</image:loc>
              <image:caption>Decimal point</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/common-denominator.png</image:loc>
              <image:caption>Common denominator of 12</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/4th-grade-math-concepts.png</image:loc>
              <image:caption>4th grade math concepts</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/example-of-an-obtuse-angle.png</image:loc>
              <image:caption>Example of an obtuse angle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/proper-and-improper-fractions.png</image:loc>
              <image:caption>Proper and improper fractions</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/150-degrees-angle.png</image:loc>
              <image:caption>150 degrees angles</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/a-number-line-from-zero-to-seven.png</image:loc>
              <image:caption>A number line from zero to seven</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/comparing-fractions.png</image:loc>
              <image:caption>Comparing fractions</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/line-of-symmetry.png</image:loc>
              <image:caption>Line of symmetry</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/arc.png</image:loc>
              <image:caption>Arc</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/tenth-and-hundredth.png</image:loc>
              <image:caption>Tenth and hundredth</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/intersecting-lines.png</image:loc>
              <image:caption>Intersecting lines</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/rectangle-with-a-length-of-6-and-a-width-of-2.png</image:loc>
              <image:caption>Rectangle with a length of six and a width of 2</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/example-of-a-circle.png</image:loc>
              <image:caption>Example of a circle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-shapes.png</image:loc>
              <image:caption>Congruent shapes</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/benchmark-fractions.png</image:loc>
              <image:caption>Benchmark fractions</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/4th-grade-math-problems.html</loc>
            <lastmod>2023-06-05T10:05:24.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/fourth-grade-math-problems-image.png</image:loc>
              <image:caption>4th grade math problems</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/4th-grade-math-test.html</loc>
            <lastmod>2025-10-25T13:41:16.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equivalent-fractions.jpg</image:loc>
              <image:caption>Equivalent fractions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Pay-now1.png</image:loc>
              <image:caption>Pay Now</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Base-10-blocks1.gif</image:loc>
              <image:caption>Base 100 blocks image</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/modeling-fractions.gif</image:loc>
              <image:caption>Modeling fractions</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/a-fraction.jpg</image:loc>
              <image:caption>three-ninths</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/long-division1.jpg</image:loc>
              <image:caption>Long division image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/square-unit.jpg</image:loc>
              <image:caption>Square unit</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/5-percent-of-any-number-in-4-seconds.html</loc>
            <lastmod>2024-02-21T15:28:21.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/5-percent-of-any-number.png</image:loc>
              <image:caption>5 percent of 36</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/5th-grade-math-test.html</loc>
            <lastmod>2025-10-25T13:40:48.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/computer-cost-over-time.jpg</image:loc>
              <image:caption>Cost of computers over time</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Pay-now1.png</image:loc>
              <image:caption>Pay Now</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/rectangle12.jpg</image:loc>
              <image:caption>rectangle whose length is 7 and width is 5</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/5th-grade-math-word-problems.html</loc>
            <lastmod>2022-10-11T17:53:20.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/fifth-grade-math-word-problems.jpg</image:loc>
              <image:caption>Fifth grade math word problems</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/computer-sales.jpg</image:loc>
              <image:caption>Computers on sales</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trays-with-nails.jpg</image:loc>
              <image:caption>How many nails are there in total if each compartment has 35 nails?</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/6th-grade-math-problems.html</loc>
            <lastmod>2022-11-05T22:27:42.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/cookies.jpg</image:loc>
              <image:caption>Cookies</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/zoo.jpg</image:loc>
              <image:caption>Zoo</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sixth-grade-math-word-problems.jpg</image:loc>
              <image:caption>Sixth grade math word problems</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/6th-grade-math-test.html</loc>
            <lastmod>2025-10-25T13:40:24.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-and-area.jpg</image:loc>
              <image:caption>Rectangles with sides 2.33333 and 5.66666</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Pay-now1.png</image:loc>
              <image:caption>Pay Now</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/outcome.gif</image:loc>
              <image:caption>Left circle has numbers 1, 1, 2, and 3. Right circle has the words pink, white, blue, and red</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/rectangular-prism.jpg</image:loc>
              <image:caption>Rectangular prism</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-triangle.gif</image:loc>
              <image:caption>Similar triangles</image:caption>
            </image:image>
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            <lastmod>2025-06-19T10:23:48.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/algebra-test-generator.html</loc>
            <lastmod>2025-06-19T10:25:53.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/algebra-word-problems.html</loc>
            <lastmod>2024-10-15T21:12:15.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/algebra-worksheets.html</loc>
            <lastmod>2021-05-06T10:32:40.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/ambiguous-case-of-the-law-of-sines.html</loc>
            <lastmod>2022-09-22T22:16:50.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Ambiguous-case-of-the-law-of-sines-one-right-triangle.png</image:loc>
              <image:caption>Ambiguous case of the law of sines when one right triangle can be formed</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Ambiguous-case-of-the-law-of-sines-no-triangle.png</image:loc>
              <image:caption>Ambiguous case of the law of sines when no triangle can be formed</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Ambiguous-case-of-the-law-of-sines-two-triangles.png</image:loc>
              <image:caption>Ambiguous case of the law of sines when 2 triangles can be formed</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Ambiguous-case-of-the-law-of-sines-exactly-one-triangle.png</image:loc>
              <image:caption>Ambiguous case of the law of sines when exactly 1 triangle can be formed</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/amicable-numbers.html</loc>
            <lastmod>2024-12-09T10:20:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/angle-between-two-lines.html</loc>
            <lastmod>2021-05-06T10:41:20.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-between-two-lines.png</image:loc>
              <image:caption>Angle between two lines</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/derive-angle-between-two-lines.png</image:loc>
              <image:caption>Derive the measure of the angle between two lines</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/angle-bisector-theorem.html</loc>
            <lastmod>2021-05-06T10:49:01.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular-bisector-theorem-exercise.png</image:loc>
              <image:caption>Angle bisector theorem example</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular-bisector-theorem.png</image:loc>
              <image:caption>Perpendicular bisector theorem</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/angle-bisector.html</loc>
            <lastmod>2024-11-09T18:57:38.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-bisector.png</image:loc>
              <image:caption>Angle bisector</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-bisector-of-a-triangle.png</image:loc>
              <image:caption>Angle bisector of a triangle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/angle-in-standard-position.html</loc>
            <lastmod>2021-06-02T11:12:18.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/positive-angle.png</image:loc>
              <image:caption>Positive angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/negative-angle.png</image:loc>
              <image:caption>Negative angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-in-standard-position.png</image:loc>
              <image:caption>Angle in standard position</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/angle-sum-theorem.html</loc>
            <lastmod>2021-05-07T05:53:26.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Alternate-interior-angle.gif</image:loc>
              <image:caption>Alternate interior angles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-sum-theorem.gif</image:loc>
              <image:caption>Sum of the angles in a triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-sum-theorem4.gif</image:loc>
              <image:caption>Angle sum theorem</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-sum-theorem1.gif</image:loc>
              <image:caption>Angle sum theorem</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/angle-vocabulary-worksheet.html</loc>
            <lastmod>2021-05-07T06:41:59.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/apartment-word-problem.html</loc>
            <lastmod>2017-07-10T13:13:00.947016Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/applications-number-problems-and-consecutive-integers.html</loc>
            <lastmod>2022-09-21T15:10:38.087915Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/applications-of-slope.html</loc>
            <lastmod>2022-10-03T15:31:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/steep-road.jpg</image:loc>
              <image:caption>Steep road</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/roof-pitch.jpg</image:loc>
              <image:caption>Roof pitch</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/15-percent-grade-of-a-road.jpg</image:loc>
              <image:caption>Grade of the road is 15%</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/approximating-the-area-of-a-circle.html</loc>
            <lastmod>2021-05-07T06:52:49.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/inscribed-circle1.gif</image:loc>
              <image:caption>Inscribed square</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/inscribed-circle.gif</image:loc>
              <image:caption>Inscribed circle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/archimedes-principle.html</loc>
            <lastmod>2021-05-07T06:56:39.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Archimedes-principle.png</image:loc>
              <image:caption>Archimedes&#39; principle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-between-four-touching-circles.html</loc>
            <lastmod>2021-06-02T11:27:06.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-between-four-touching-circles1.jpg</image:loc>
              <image:caption>Area between four touching circles1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-between-four-touching-circles.jpg</image:loc>
              <image:caption>Area between four touching circles</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-formula.html</loc>
            <lastmod>2023-01-25T11:32:29.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/frequently-used-area-formulas.png</image:loc>
              <image:caption>Frequently used area formulas</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-circle.html</loc>
            <lastmod>2024-10-02T10:24:26.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-circle-using-the-radius.png</image:loc>
              <image:caption>Find the area of a circle using the radius</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area1.gif</image:loc>
              <image:caption>Area computation</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Derive-the-area-of-a-circle.png</image:loc>
              <image:caption>How to derive the area of a circle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-circle-using-the-diameter.png</image:loc>
              <image:caption>Find the area of the circle using the diameter</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-circle.png</image:loc>
              <image:caption>Area of the circle on the right is bigger</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-kite.html</loc>
            <lastmod>2023-02-08T14:16:54.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-kite3.png</image:loc>
              <image:caption>Area of a kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-kite2.png</image:loc>
              <image:caption>Area of a kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/a-kite.png</image:loc>
              <image:caption>A kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-kite5.png</image:loc>
              <image:caption>Area of a kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-kite4.png</image:loc>
              <image:caption>Area of a kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-kite.png</image:loc>
              <image:caption>Area of a kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-kite-formula.png</image:loc>
              <image:caption>Formula for the area of a kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/kite.png</image:loc>
              <image:caption>Kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-kite1.png</image:loc>
              <image:caption>Area of a kite</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-rectangle-worksheet.html</loc>
            <lastmod>2024-10-22T09:00:22.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-regular-polygon.html</loc>
            <lastmod>2021-05-07T08:10:04.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/n-gon-area-formula5.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/n-gon-area-formula3.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/tangent-apothem.png</image:loc>
              <image:caption>apothem</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sinus-radius.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-n-gon.png</image:loc>
              <image:caption>Representation of an n-gon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/n-gon-area-formula6.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/n-gon-area-formula.png</image:loc>
              <image:caption>n-gon area formula</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/apothem.png</image:loc>
              <image:caption>apothem</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/n-gon-area-formula2.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/n-gon-area-formula4.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/n-gon-area-formula1.png</image:loc>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-rhombus.html</loc>
            <lastmod>2022-05-30T15:27:28.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-rhombus.jpg</image:loc>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-sector-calculator.html</loc>
            <lastmod>2021-05-07T12:37:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-sector.png</image:loc>
              <image:caption>Image of a sector</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-sector.html</loc>
            <lastmod>2024-10-23T15:25:38.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sectors.png</image:loc>
              <image:caption>Examples of sectors</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angle-sector.png</image:loc>
              <image:caption>angle-sector</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sector-pizza.png</image:loc>
              <image:caption>A slice of pizza is a sector</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-trapezoid.html</loc>
            <lastmod>2025-05-18T16:20:48.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoidarea.gif</image:loc>
              <image:caption>Area of a trapezoid formula</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-trapezoid1.png</image:loc>
              <image:caption>Area of a trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-trapezoid-when-the-height-is-not-known.png</image:loc>
              <image:caption>Area of a trapezoid when the height is missing or not known</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-trapezoid-when-height-is-missing.png</image:loc>
              <image:caption>Area of a trapezoid when the height is missing or not known</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-trapezoid-when-height-is-missing1.png</image:loc>
              <image:caption>Area of trapezoid when height is missing</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-trapezoid.jpg</image:loc>
              <image:caption>Area of trapezoid</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-a-triangle-given-sas.html</loc>
            <lastmod>2022-01-28T09:13:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-using-sas1.png</image:loc>
              <image:caption>Area of a triangle using sas</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-using-sas.png</image:loc>
              <image:caption>Area of a triangle using sas</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-an-equilateral-triangle.html</loc>
            <lastmod>2021-05-07T12:49:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateral-triangle2.gif</image:loc>
              <image:caption>Area of an equilateral triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateral-triangle.gif</image:loc>
              <image:caption>Equilateral triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateral-triangle3.gif</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateral-triangle1.gif</image:loc>
              <image:caption>Equilateral triangle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-complex-shapes.html</loc>
            <lastmod>2025-08-13T18:53:16.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-irregular-shapes.html</loc>
            <lastmod>2021-05-07T13:02:27.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/irregular-shapes2.gif</image:loc>
              <image:caption>Irregular shape</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/irregular-shapes3.gif</image:loc>
              <image:caption>Irregular shape</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/irregular-shapes.gif</image:loc>
              <image:caption>Irregular shape</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-shapes.html</loc>
            <lastmod>2025-05-18T16:19:46.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area3.gif</image:loc>
              <image:caption>Area of a rectangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-shapes.jpg</image:loc>
              <image:caption>Area of shapes</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area4.gif</image:loc>
              <image:caption>Area of a rectangle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-triangles-worksheet.html</loc>
            <lastmod>2024-10-21T16:44:28.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-of-triangles.html</loc>
            <lastmod>2025-05-18T16:18:37.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/areatriangle4.gif</image:loc>
              <image:caption>Base and height of a triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/right-angled-triangle-with-base-5-inches-and-height-6-inches.jpg</image:loc>
              <image:caption>Right-angled triangle with base 5 inches and height 6 inches</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-triangle.jpg</image:loc>
              <image:caption>Area of a triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/obtuse-triangle-with-base-4-inches-and-height-3-inches.jpg</image:loc>
              <image:caption>Obtuse triangle with base of 4 inches and height 3 inches</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/area-under-the-standard-normal-curve.html</loc>
            <lastmod>2022-02-22T13:46:04.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/standard-normal-distribution-curve.png</image:loc>
              <image:caption>Standard normal distribution curve</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/standard-normal-distribution-curve1.png</image:loc>
              <image:caption>Standard normal distribution curve</image:caption>
            </image:image>
            <image:image>
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              <image:caption>Charging by induction</image:caption>
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              <image:caption>Charging by induction</image:caption>
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            <image:image>
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              <image:caption>Charging by induction</image:caption>
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              <image:caption>Chebyshev&#39;s theorem</image:caption>
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            <loc>https://www.basic-mathematics.com/checkerboard-puzzle.html</loc>
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              <image:caption>Checkerboard</image:caption>
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            <image:image>
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              <image:caption>Checkerboard puzzle</image:caption>
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            <image:image>
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            <loc>https://www.basic-mathematics.com/children-and-the-apples-word-problem.html</loc>
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      </url>
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              <image:caption>2 dimensional circle graph</image:caption>
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            <image:image>
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              <image:caption>3-dimensional circle graph</image:caption>
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            <image:image>
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              <image:caption>Pie chart</image:caption>
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            <image:image>
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              <image:caption>Table for a circle graph</image:caption>
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              <image:caption>Circumference of a circle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/circumference-of-a-circle01.jpg</image:loc>
              <image:caption>Circumference of a circle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/circumference-of-a-clock.png</image:loc>
              <image:caption>Circumference of a clock</image:caption>
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            <image:image>
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              <image:caption>Radius of the clock</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/diameter-of-the-clock.jpg</image:loc>
              <image:caption>Diameter of the clock</image:caption>
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      <url>
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              <image:caption>Classification of numbers</image:caption>
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              <image:caption>An angle</image:caption>
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            <image:image>
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              <image:caption>An angle</image:caption>
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            <image:image>
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              <image:caption>An angle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/a-straight-angle.jpg</image:loc>
              <image:caption>An angle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Straightangle.gif</image:loc>
              <image:caption>An angle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rightangle.gif</image:loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/a-right-angle.jpg</image:loc>
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            <image:image>
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              <image:caption>An angle</image:caption>
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            <image:image>
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              <image:caption>An angle</image:caption>
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              <image:caption>An angle</image:caption>
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            <lastmod>2021-05-12T06:42:02.000000Z</lastmod>
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            <lastmod>2024-10-16T14:09:42.000000Z</lastmod>
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      <url>
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              <image:caption>Number of combinations formula</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/formula6.gif</image:loc>
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            <image:image>
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            <image:image>
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            <image:image>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/formula4.gif</image:loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoidarea1.gif</image:loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/stratified-sampling.png</image:loc>
              <image:caption>Stratified sampling</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/random-sampling.png</image:loc>
              <image:caption>Random sampling</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/commutative-property-in-real-life.html</loc>
            <lastmod>2021-05-12T07:37:37.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/commutative-property.html</loc>
            <lastmod>2024-11-04T08:41:35.000000Z</lastmod>
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      <url>
            <loc>https://www.basic-mathematics.com/compare-fractions-calculator.html</loc>
            <lastmod>2024-10-03T10:01:31.000000Z</lastmod>
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            <loc>https://www.basic-mathematics.com/comparing-decimals.html</loc>
            <lastmod>2025-05-18T16:10:16.000000Z</lastmod>
            <image:image>
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              <image:caption>Comparing 52.432 and 45.989</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/comparedecimal5.gif</image:loc>
              <image:caption>Comparing 0.043 and 0.00985</image:caption>
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            <image:image>
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              <image:caption>Comparing 60.802 and 60.504</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/comparedecimal6.gif</image:loc>
              <image:caption>Comparing 0.043 and 0.00985</image:caption>
            </image:image>
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            <loc>https://www.basic-mathematics.com/comparing-fractions-game.html</loc>
            <lastmod>2024-11-07T19:47:29.000000Z</lastmod>
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            <lastmod>2024-09-18T21:01:19.000000Z</lastmod>
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            <lastmod>2025-12-15T15:17:03.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/Numberline34.gif</image:loc>
              <image:caption>Number line</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline33.gif</image:loc>
              <image:caption>-7 and -5 on the number line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline32.gif</image:loc>
              <image:caption>-4 and -1 on the number line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline30.gif</image:loc>
              <image:caption>-2 and 3 on the number line</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/comparison-word-problems.html</loc>
            <lastmod>2021-05-13T07:00:13.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/model-of-additive-comparison.png</image:loc>
              <image:caption>Additive comparison</image:caption>
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            <image:image>
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              <image:caption>Model of multiplicative comparison with dolls</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/model-of-additive-comparison1.png</image:loc>
              <image:caption>Additive comparison</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/model-of-multiplicative-comparison.png</image:loc>
              <image:caption>Model of multiplicative comparison</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/compensation.html</loc>
            <lastmod>2021-05-13T07:12:11.000000Z</lastmod>
      </url>
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            <lastmod>2025-05-18T16:07:15.000000Z</lastmod>
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              <image:caption>Complement of set A</image:caption>
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            <image:image>
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              <image:caption>Complement of a set</image:caption>
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            <lastmod>2025-05-18T16:06:34.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/Supplementary-angles-image.gif</image:loc>
              <image:caption>Examples of supplementary angles</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Supplementary-angles.gif</image:loc>
              <image:caption>Supplementary angles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/complementary-angles-image.gif</image:loc>
              <image:caption>Examples of complementary angles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/complementary-angles.gif</image:loc>
              <image:caption>Angles x and y are complementary angles</image:caption>
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      <url>
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            <lastmod>2022-11-11T12:53:41.000000Z</lastmod>
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              <image:caption>Complex numbers</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/components-of-a-vector.html</loc>
            <lastmod>2022-07-06T15:12:29.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/A-vector.png</image:loc>
              <image:caption>A vector</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Components-of-a-vector.png</image:loc>
              <image:caption>Components of a vector</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/components-of-a-vector1.jpg</image:loc>
              <image:caption>Components of a vector</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/composite-function.html</loc>
            <lastmod>2021-05-13T07:38:54.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/composition-of-functions-worksheet.html</loc>
            <lastmod>2021-05-13T07:53:00.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/compound-inequality.html</loc>
            <lastmod>2021-08-30T06:46:48.000000Z</lastmod>
            <image:image>
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              <image:caption>Graph of x &gt; 2 or x &lt; -3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/numberline310.gif</image:loc>
              <image:caption>Graph of x &gt;=2 and x&lt; 4</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/numberline340.gif</image:loc>
              <image:caption>Graph of x &gt; -2 and x &gt; 1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/numberline31.gif</image:loc>
              <image:caption>Graph of x &gt;=2 and x&lt; 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/numberline37.gif</image:loc>
              <image:caption>Graph of x &gt; -2 and x &gt; 1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/numberline320.gif</image:loc>
              <image:caption>Graph of x &gt;=2 and x&lt; 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/numberline36.gif</image:loc>
              <image:caption>Graph of x &gt; -2 and x &gt; 1</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/numberline35.gif</image:loc>
              <image:caption>Graph of x &gt; -2 and x &gt; 1</image:caption>
            </image:image>
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            <lastmod>2021-05-13T08:37:46.000000Z</lastmod>
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              <image:caption>Computer software engineer</image:caption>
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              <image:caption>Concave polygon</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/concentric-circles.jpg</image:loc>
              <image:caption>Concentric circles</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/conditional-probability.html</loc>
            <lastmod>2023-03-30T12:57:50.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/contingency-table.png</image:loc>
              <image:caption>Contingency table</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/conditional-probability.png</image:loc>
              <image:caption>Conditional probability</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/conditional-statement.html</loc>
            <lastmod>2021-05-13T08:59:07.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagram-for-a-conditional-statement1.png</image:loc>
              <image:caption>Example of Venn Diagram for a conditional statement</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagram-for-a-conditional-statement.png</image:loc>
              <image:caption>Venn Diagram for a conditional statement</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagram-for-a-conditional-statement2.png</image:loc>
              <image:caption>Another example of Venn Diagram for a conditional statement</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/cone-calculator.html</loc>
            <lastmod>2024-10-24T15:04:04.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/congruent-shapes.html</loc>
            <lastmod>2021-06-03T09:51:53.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-shapes.gif</image:loc>
              <image:caption>Congruent shapes</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles.gif</image:loc>
              <image:caption>Congruent triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-circles.gif</image:loc>
              <image:caption>Congruent circles</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/congruent-triangles.html</loc>
            <lastmod>2022-07-07T15:45:32.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles6.gif</image:loc>
              <image:caption>Congruent triangles BY SSS</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles2.gif</image:loc>
              <image:caption>Corresponding angles of congruent triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles1.gif</image:loc>
              <image:caption>Congruent triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles9.gif</image:loc>
              <image:caption>Congruent triangle by AAS</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles4.gif</image:loc>
              <image:caption>Congruent angles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles7.gif</image:loc>
              <image:caption>Congruent triangles by SAS</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles10.gif</image:loc>
              <image:caption>Congruent triangle by Hypotenuse-Leg theorem</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/congruent-triangles8.gif</image:loc>
              <image:caption>Congruent traingles by ASA</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/conjugate-in-algebra.html</loc>
            <lastmod>2021-05-13T09:23:29.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/conjugate-of-a-complex-number.html</loc>
            <lastmod>2022-11-12T15:30:16.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/consecutive-integers.html</loc>
            <lastmod>2021-05-13T09:27:14.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Algebra-ebook.jpg</image:loc>
              <image:caption>Algebra ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/consecutive-odd-integers-word-problem.html</loc>
            <lastmod>2022-09-21T15:02:15.722947Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/conservation-of-momentum.html</loc>
            <lastmod>2022-07-06T10:21:25.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/No-external-forces.png</image:loc>
              <image:caption>No external forces</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/constant-acceleration-equations.html</loc>
            <lastmod>2021-05-14T18:35:14.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constant-acceleration-equations.png</image:loc>
              <image:caption>Constant acceleration equations</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/constructing-an-equilateral-triangle.html</loc>
            <lastmod>2021-05-14T18:39:16.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-equilateral-triangle5-image.gif</image:loc>
              <image:caption>Constructing an equilateral triangle: step 5</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-equilateral-triangle-image.gif</image:loc>
              <image:caption>Constructing an equilateral triangle: step 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-equilateral-triangle3-image.gif</image:loc>
              <image:caption>Constructing an equilateral triangle: step 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-equilateral-triangle4-image.gif</image:loc>
              <image:caption>Constructing an equilateral triangle: step 3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/segment-image.gif</image:loc>
              <image:caption>Constructing an equilateral triangle: step 1</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/constructing-an-isosceles-triangle.html</loc>
            <lastmod>2021-05-14T18:41:53.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-isosceles-triangle3-image.gif</image:loc>
              <image:caption>Constructing an isosceles triangle: step 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-isosceles-triangle-image.gif</image:loc>
              <image:caption>Constructing an isosceles triangle: step 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-isosceles-triangle5-image.gif</image:loc>
              <image:caption>Constructing an isosceles triangle: step 5</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constructing-isosceles-triangle4-image.gif</image:loc>
              <image:caption>Constructing an isosceles triangle: step 3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Apex-angle.png</image:loc>
              <image:caption>Apex angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Apex-angle1.png</image:loc>
              <image:caption>Apex angle extended</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Apex-angle2.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Apex-angle3.png</image:loc>
              <image:caption>Isosceles triangle ABC</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/segment-image.gif</image:loc>
              <image:caption>Constructing an isosceles triangle: step 1</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/constructing-perpendiculars.html</loc>
            <lastmod>2021-05-14T18:44:58.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular12.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is not on the line: step 3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular9.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is not on the line: step 1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular1.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is on the line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular4.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is on line: step 1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular6.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is on line: step 3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular13.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is not on the line: step 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular11.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is not on the line: step 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular3.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is on the line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular5.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is on line: step 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular8.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is not on the line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular2.gif</image:loc>
              <image:caption>Constructing a perpendicular when point is not on line</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/constructing-the-midpoint-of-a-segment.html</loc>
            <lastmod>2021-05-14T18:47:37.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bisecting-a-segment4.gif</image:loc>
              <image:caption>Bisecting a segment: step 3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bisecting-a-segment.gif</image:loc>
              <image:caption>Bisecting a segment</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bisecting-a-segment1.gif</image:loc>
              <image:caption>Bisecting a segment: step 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bisecting-a-segment3.gif</image:loc>
              <image:caption>Bisecting a segment: step 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bisecting-a-segment2.gif</image:loc>
              <image:caption>Bisecting a segment: step 1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bisecting-a-segment6.gif</image:loc>
              <image:caption>Bisecting a segment: step 5</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/construction-of-a-frequency-distribution.html</loc>
            <lastmod>2021-06-24T08:51:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/frequency-distribution-relative-frequency.png</image:loc>
              <image:caption>Frequency distribution, relative frequency, and the percentage distribution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/frequency-distribution-table1.png</image:loc>
              <image:caption>Frequency distribution table</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Raw-data1.png</image:loc>
              <image:caption>Raw data</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/consumer-math.html</loc>
            <lastmod>2024-10-14T07:55:02.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/consumer-mathematics.png</image:loc>
              <image:caption>Consumer math</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/continuous-probability-distribution.html</loc>
            <lastmod>2022-07-15T08:48:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/continuous-probability-distribution1.png</image:loc>
              <image:caption>Continuous probability distribution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/continuous-probability-distribution.png</image:loc>
              <image:caption>Continuous probability distribution</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/converse-of-a-conditional-statement.html</loc>
            <lastmod>2021-06-03T10:58:09.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/converse-of-a-conditional-statement.png</image:loc>
              <image:caption>Converse of a conditional statement</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/converse-of-the-pythagorean-theorem.html</loc>
            <lastmod>2023-04-10T09:04:10.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/converse-of-the-pythagorean-theorem.png</image:loc>
              <image:caption>Converse of the Pythagorean Theorem</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
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      </url>
      <url>
            <loc>https://www.basic-mathematics.com/conversion-between-metric-units.html</loc>
            <lastmod>2024-12-12T09:18:49.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/conversion-between-metric-units.png</image:loc>
              <image:caption>Conversion between metric units</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/convert-a-quadratic-function-from-the-general-form-to-the-vertex-form.html</loc>
            <lastmod>2021-09-23T07:59:13.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/convert-a-quadratic-function-from-the-vertex-form-to-the-general-form.html</loc>
            <lastmod>2021-10-02T10:25:55.000000Z</lastmod>
      </url>
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            <loc>https://www.basic-mathematics.com/convert-from-degrees-to-radians.html</loc>
            <lastmod>2021-06-03T11:27:41.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/convert-degrees-to-radians.png</image:loc>
              <image:caption>Convert degrees to radians</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/convert-from-standard-form-to-slope-intercept-form.html</loc>
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            <lastmod>2025-03-26T16:19:09.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/square-feet-to-acres.png</image:loc>
              <image:caption>Square feet to acres</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/converting-repeating-decimals-to-fractions.html</loc>
            <lastmod>2021-05-15T13:56:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/repeating-decimals1.gif</image:loc>
              <image:caption>repeating decimals 1.042424242</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/repeating-decimals2.gif</image:loc>
              <image:caption>repeating decimals</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/repeating-decimals.gif</image:loc>
              <image:caption>repeating decimals:0.5555555</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/convex-polygons.html</loc>
            <lastmod>2021-05-15T16:37:58.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/convex-triangles.gif</image:loc>
              <image:caption>Convex triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/convex-polygon.gif</image:loc>
              <image:caption>Convex polygon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/convex-quadrilaterals.gif</image:loc>
              <image:caption>convex quadrilaterals</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
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      </url>
      <url>
            <loc>https://www.basic-mathematics.com/cool-math-tricks.html</loc>
            <lastmod>2025-08-21T22:00:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/cool-math-trick.png</image:loc>
              <image:caption>Cool math tricks</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-9-by-5-using-your-fingers.jpg</image:loc>
              <image:caption>Multiplying 9 by 5 using your fingers</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-9-by-6-using-your-fingers.jpg</image:loc>
              <image:caption>Multiplying 9 by 6 using your fingers</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplication-by-9-with-10-fingers.jpg</image:loc>
              <image:caption>Multiplication by 9 using your fingers</image:caption>
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            <loc>https://www.basic-mathematics.com/copying-an-angle.html</loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/copying1.gif</image:loc>
              <image:caption>Copying angle A</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/copying8.gif</image:loc>
              <image:caption>Copying an angle: step 6</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/copying7.gif</image:loc>
              <image:caption>Copying an angle: step 5</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/copying3.gif</image:loc>
              <image:caption>Copying an angle : step 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/copying5.gif</image:loc>
              <image:caption>Copying an angle: step 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/copying4.gif</image:loc>
              <image:caption>Copying an angle: step 3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/copying2.gif</image:loc>
              <image:caption>Copying an angle: step 1</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/cost-to-copy-4757-pages.html</loc>
            <lastmod>2015-05-06T12:48:38.646319Z</lastmod>
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              <image:caption>Factor tree of 12600</image:caption>
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            <image:image>
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            <image:image>
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              <image:caption>Cumulative frequency distribution</image:caption>
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              <image:caption>Frequency table</image:caption>
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      <url>
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      <url>
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      </url>
      <url>
            <loc>https://www.basic-mathematics.com/examples-of-binomial-experiments.html</loc>
            <lastmod>2021-08-24T08:55:42.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/examples-of-complex-fractions.html</loc>
            <lastmod>2021-05-18T07:40:41.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/complex-fractions2.gif</image:loc>
              <image:caption>Very complex fraction</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/complex-fractions4.gif</image:loc>
              <image:caption>Complex fraction</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/complex-fractions1.gif</image:loc>
              <image:caption>Complex fractions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/complex-fractions.gif</image:loc>
              <image:caption>complex fractions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/complex-fractions3.gif</image:loc>
              <image:caption>Complex fraction</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/examples-of-conduction.html</loc>
            <lastmod>2021-06-04T13:47:25.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/conduction.png</image:loc>
              <image:caption>Conduction</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/examples-of-convection.html</loc>
            <lastmod>2021-05-18T07:54:07.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/convection.png</image:loc>
              <image:caption>Convection</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/examples-of-inductive-reasoning.html</loc>
            <lastmod>2021-06-04T13:51:56.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/inductive3.gif</image:loc>
              <image:caption>Inductive reasoning</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/inductive4.gif</image:loc>
              <image:caption>Inductive reasoning</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/inductive-reasoning.jpg</image:loc>
              <image:caption>Inductive reasoning</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/inductive.gif</image:loc>
              <image:caption>inductive reasoning</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/inductive1.gif</image:loc>
              <image:caption>inductive reasoning</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/expanding-logarithms.html</loc>
            <lastmod>2023-05-09T15:19:23.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Expanding-logarithms.jpg</image:loc>
              <image:caption>Expanding logarithms</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/experimental-probability.html</loc>
            <lastmod>2023-03-07T12:31:32.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/theoretical-probability-vs-experimental-probability.jpg</image:loc>
              <image:caption>Experimental versus theoretical probability</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/exponential-and-logarithmic-functions.html</loc>
            <lastmod>2021-05-18T08:30:58.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/graph-of-exponential-and-logarithmic-functions.jpg</image:loc>
              <image:caption>Graph of exponential and logarithmic functions</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/exponential-function.html</loc>
            <lastmod>2022-12-24T20:15:57.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/exponential-function.jpg</image:loc>
              <image:caption>Exponential function</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/exponential-growth-of-coronavirus.html</loc>
            <lastmod>2021-06-04T14:24:38.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/total-cases-of-coronavirus.jpg</image:loc>
              <image:caption>Total cases of coronavirus</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/total-deaths-by-coronavirus.jpg</image:loc>
              <image:caption>Total deaths by coronavirus</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/exponents.html</loc>
            <lastmod>2024-11-17T11:02:46.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/exponent-fraction.png</image:loc>
              <image:caption>two-thirds to the third power</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/exponents.jpg</image:loc>
              <image:caption>Exponents</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/expression-solver-calculator.html</loc>
            <lastmod>2024-09-25T17:56:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Algebra-ebook.jpg</image:loc>
              <image:caption>Algebra ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factor-a-sum-or-difference-of-cubes.html</loc>
            <lastmod>2021-11-03T10:04:19.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factor-by-using-a-quadratic-pattern.html</loc>
            <lastmod>2021-11-11T09:16:39.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factorial-calculator.html</loc>
            <lastmod>2025-09-17T15:52:53.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-algebraic-expressions.html</loc>
            <lastmod>2025-05-18T15:50:42.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factoralgebraic3.gif</image:loc>
              <image:caption>Factoring x^2y^4 + 2x^2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factoralgebraic1.gif</image:loc>
              <image:caption>Factoring x^2y^4 + 2x^2</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-by-grouping.html</loc>
            <lastmod>2024-12-05T18:12:37.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factoring-by-grouping.png</image:loc>
              <image:caption>Factoring by grouping</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-calculator.html</loc>
            <lastmod>2021-05-19T06:16:54.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Algebra-ebook.jpg</image:loc>
              <image:caption>Algebra ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-formulas.html</loc>
            <lastmod>2021-05-19T06:24:18.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-in-math.html</loc>
            <lastmod>2024-11-01T08:31:38.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/what-is-factoring.png</image:loc>
              <image:caption>What is factoring?</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-integers.html</loc>
            <lastmod>2024-11-17T11:05:04.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factoringintegers1.gif</image:loc>
              <image:caption>Factor tree of 72</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factoringintegers0.gif</image:loc>
              <image:caption>Factor tree of 240</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-perfect-square-trinomials.html</loc>
            <lastmod>2023-04-30T12:21:31.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factoring-perfect-square-trinomials.png</image:loc>
              <image:caption>Factoring perfect square trinomials</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-quadratic-equations-worksheet.html</loc>
            <lastmod>2023-10-20T13:13:06.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-quadratics-with-algeblocks.html</loc>
            <lastmod>2025-11-03T09:52:54.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-radicals.html</loc>
            <lastmod>2021-05-19T06:44:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Algebra-ebook.jpg</image:loc>
              <image:caption>Algebra ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-strategy.html</loc>
            <lastmod>2021-05-19T06:48:00.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-trinomials.html</loc>
            <lastmod>2024-11-06T20:28:15.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-using-the-box-method.html</loc>
            <lastmod>2021-05-19T07:23:52.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/box-method-all-terms.png</image:loc>
              <image:caption>Box method - all terms</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/box-method6.png</image:loc>
              <image:caption>Factoring x^2 - 2x - 3 using the box method</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/box-method1.png</image:loc>
              <image:caption>Box method1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/box-method.png</image:loc>
              <image:caption>Box method</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/box-method5.png</image:loc>
              <image:caption>Factoring 6x^2 + 27x + 30</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/box-method2.png</image:loc>
              <image:caption>Factoring using the box method</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/box-method-first-term-and-last-term.png</image:loc>
              <image:caption>Box method - first term and last term of the trinomial</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factoring-using-the-quadratic-formula.html</loc>
            <lastmod>2021-05-19T07:34:55.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factors-calculator.html</loc>
            <lastmod>2024-10-08T15:16:43.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/factors-of-20.html</loc>
            <lastmod>2023-09-17T13:49:20.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/negative-factors-of-20.jpg</image:loc>
              <image:caption>Negative factors of 20</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/factor-tree-of-20.jpg</image:loc>
              <image:caption>Factor tree of 20</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/positive-factors-of-20.jpg</image:loc>
              <image:caption>Positive factors of 20</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/family-of-absolute-value-functions.html</loc>
            <lastmod>2021-09-11T15:36:51.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/family-of-quadratic-functions.html</loc>
            <lastmod>2021-09-30T10:38:58.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/family-of-quadratic-functions1.png</image:loc>
              <image:caption>Family of quadratic functions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/family-of-quadratic-functions.png</image:loc>
              <image:caption>Family of quadratic functions</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/fencing-a-rectangular-garden-word-problem.html</loc>
            <lastmod>2016-10-07T17:11:06.699093Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/fibonacci-sequence.html</loc>
            <lastmod>2022-08-18T11:57:49.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Fibonacci-sequence.png</image:loc>
              <image:caption>Fibonacci sequence</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/fielding-percentage.html</loc>
            <lastmod>2021-05-19T07:48:26.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-a-reflection-image.html</loc>
            <lastmod>2021-05-19T07:52:12.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/reflection-of-a-point2.jpg</image:loc>
              <image:caption>Reflection of a point across the line y = x</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/reflection-of-a-point4.jpg</image:loc>
              <image:caption>Reflection of a point across the line y = -x</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/reflection-of-a-point1.jpg</image:loc>
              <image:caption>Reflection of a point across the y-axis</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/reflection-of-a-point5.jpg</image:loc>
              <image:caption>Reflection of a point reflected in the origin</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/reflection-of-a-point.jpg</image:loc>
              <image:caption>Reflection of a point across the x-axis</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-a-translation-image.html</loc>
            <lastmod>2021-05-19T07:57:19.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/translating-a-triangle.jpg</image:loc>
              <image:caption>Translating a triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/translation-a-point.jpg</image:loc>
              <image:caption>Translating a point</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-an-endpoint.html</loc>
            <lastmod>2021-11-17T08:24:18.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-angle-measures.html</loc>
            <lastmod>2021-06-04T14:53:00.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/angles-in-circle.jpg</image:loc>
              <image:caption>Find angle measures</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-complex-solutions-of-a-quadratic-equation.html</loc>
            <lastmod>2021-09-26T09:13:50.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-consecutive-odd-positive-integers.html</loc>
            <lastmod>2015-05-06T14:12:30.527330Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-each-side-of-a-triangle.html</loc>
            <lastmod>2022-10-10T09:12:28.972512Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-function-values.html</loc>
            <lastmod>2022-08-10T08:37:41.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/find-function-values.jpg</image:loc>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-geometric-probability.html</loc>
            <lastmod>2021-09-07T12:44:33.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/dartboard1.png</image:loc>
              <image:caption>Geometric probability using a dartboard</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-length-and-width-of-a-triangle.html</loc>
            <lastmod>2022-09-21T14:12:27.487035Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-rational-roots.html</loc>
            <lastmod>2021-11-09T11:47:48.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-regular-hourly-rate.html</loc>
            <lastmod>2022-09-21T14:32:21.793719Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-sine-and-cosine-using-the-unit-circle.html</loc>
            <lastmod>2021-05-19T08:26:10.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle-and-30-60-90-triangle.png</image:loc>
              <image:caption>Unit circle and the 30-60-90 degrees triangle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-the-inverse-of-a-number.html</loc>
            <lastmod>2021-08-24T08:20:30.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-the-multiplicity-of-a-zero.html</loc>
            <lastmod>2021-10-20T08:45:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-the-number-of-combinations.html</loc>
            <lastmod>2021-08-24T08:53:05.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-the-perimeter-in-the-coordinate-plane.html</loc>
            <lastmod>2021-09-15T07:51:44.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-in-the-coordinate-plane.png</image:loc>
              <image:caption>Perimeter in the coordinate plane</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-in-the-coordinate-plane1.png</image:loc>
              <image:caption>Perimeter in the coordinate plane</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-the-quotient-and-remainder.html</loc>
            <lastmod>2021-05-19T08:45:56.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/27.png</image:loc>
              <image:caption>27 counters</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/27-divided-by-4.png</image:loc>
              <image:caption>27 divided by 4</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/30-divided-by-8.png</image:loc>
              <image:caption>30 divided by 8</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/30.png</image:loc>
              <image:caption>30 counters</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-the-radius-of-a-circle.html</loc>
            <lastmod>2022-06-07T14:26:31.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/find-the-radius-of-a-circle-given-the-circumference.png</image:loc>
              <image:caption>find the radius of a circle given circumference</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-the-z-scores-for-a-specified-area.html</loc>
            <lastmod>2022-02-22T13:52:50.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/standard-normal-distribution-curve4.png</image:loc>
              <image:caption>Standard normal distribution curve</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/standard-normal-distribution-table1.png</image:loc>
              <image:caption>Standard normal distribution table</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-water-left-in-a-tank-using-arithmetic-sequences.html</loc>
            <lastmod>2022-09-22T10:04:52.180551Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/find-zeros-of-a-polynomial-function.html</loc>
            <lastmod>2021-10-19T10:27:36.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/finding-a-percentage.html</loc>
            <lastmod>2024-12-16T09:06:12.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/finding-the-percentage1.png</image:loc>
              <image:caption>Finding a percentage</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/finding-surface-area.html</loc>
            <lastmod>2021-04-18T12:20:48.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/finding-the-average.html</loc>
            <lastmod>2022-12-20T16:22:05.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/average1.gif</image:loc>
              <image:caption>How to find the average</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/average2.gif</image:loc>
              <image:caption>How to find the average</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/finding-the-greatest-common-factor.html</loc>
            <lastmod>2025-05-18T15:48:31.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Greatest-common-factor.png</image:loc>
              <image:caption>Greatest common factor</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/GCF3.png</image:loc>
              <image:caption>common factor of  15x^4, 25x^3, and 75x^5</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/finding-the-median.html</loc>
            <lastmod>2023-01-15T10:46:18.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Median.png</image:loc>
              <image:caption>Median</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/finding-the-mode.html</loc>
            <lastmod>2021-05-20T07:37:54.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/finding-the-perimeter.html</loc>
            <lastmod>2021-05-20T07:41:31.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter2.gif</image:loc>
              <image:caption>Trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-a-house1.jpg</image:loc>
              <image:caption>Perimeter of a house</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter3.gif</image:loc>
              <image:caption>obtuse triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-shape-with-missing-sides.jpg</image:loc>
              <image:caption>Perimeter of a shape with missing sides</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-shape-with-missing-sides1.jpg</image:loc>
              <image:caption>Perimeter of shapes with missing sides</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter6.gif</image:loc>
              <image:caption>Square</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-a-house.jpg</image:loc>
              <image:caption>Perimeter of a house</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter5.gif</image:loc>
              <image:caption>Rectangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter1.gif</image:loc>
              <image:caption>irregular polygon with 5 sides</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/finger-multiplication.html</loc>
            <lastmod>2024-12-18T20:12:16.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/finger-multiplication-quiz.png</image:loc>
              <image:caption>Finger multiplication quiz</image:caption>
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      </url>
      <url>
            <loc>https://www.basic-mathematics.com/first-grade-math-concepts.html</loc>
            <lastmod>2022-09-25T11:43:34.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/cube.png</image:loc>
              <image:caption>Cube</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/4-pencils.png</image:loc>
              <image:caption>A number</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/associative-property.png</image:loc>
              <image:caption>Associative property is shown using soccer balls</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/minute-hand.png</image:loc>
              <image:caption>Minute hand</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/counting-down.png</image:loc>
              <image:caption>Counting down</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/2-dimensional.png</image:loc>
              <image:caption>2-dimensional shapes</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/3-dimensional-figures.png</image:loc>
              <image:caption>3-dimensional shapes</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/types-of-clocks.png</image:loc>
              <image:caption>Types of clocks</image:caption>
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            <image:image>
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              <image:caption>Examples of closed figures and non-closed figures</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/expression1.png</image:loc>
              <image:caption>Expression</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Equal-parts.png</image:loc>
              <image:caption>Fractions</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/quarter.png</image:loc>
              <image:caption>A quarter</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/arrays.png</image:loc>
              <image:caption>Arrays</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/different-size.png</image:loc>
              <image:caption>Different size triangle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/commutative-property.png</image:loc>
              <image:caption>Showing the commutative property using soccer balls</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/marbles.png</image:loc>
              <image:caption>Estimate</image:caption>
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            <image:image>
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            <image:image>
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              <image:caption>Coins</image:caption>
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            <image:image>
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            <image:image>
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            <image:image>
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              <image:caption>Multiples of 10</image:caption>
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            <image:image>
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              <image:caption>Collecting data</image:caption>
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            <image:image>
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              <image:caption>Hour hand</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/counting-up.png</image:loc>
              <image:caption>Counting up</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/first-grade-math-test.html</loc>
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            <image:image>
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              <image:caption>Shapes</image:caption>
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            <image:image>
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              <image:caption>Broken ruler</image:caption>
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              <image:caption>Clock showing time</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Patterns1.jpg</image:loc>
              <image:caption>Pattern</image:caption>
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              <image:caption>Pay Now</image:caption>
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              <image:caption>clock showing time</image:caption>
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            <image:image>
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              <image:caption>38 - 5</image:caption>
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            <image:image>
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              <image:caption>Pattern</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/add01.jpg</image:loc>
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              <image:caption>First grade math word problems</image:caption>
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              <image:caption>Blank clock</image:caption>
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              <image:caption>5 apples</image:caption>
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              <image:caption>First law of thermodynamics</image:caption>
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              <image:caption>Formula for percentage</image:caption>
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              <image:caption>Formula for power</image:caption>
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              <image:caption>Four-function calculator</image:caption>
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            <lastmod>2025-10-15T17:43:03.000000Z</lastmod>
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              <image:caption>Pay Now</image:caption>
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              <image:caption>Fractions book</image:caption>
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              <image:caption>math-test-image</image:caption>
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              <image:caption>math-test-image</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/math-test1.gif</image:loc>
              <image:caption>math-test-image</image:caption>
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              <image:caption>math-test-image</image:caption>
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            <image:image>
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              <image:caption>math-test-image</image:caption>
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              <image:caption>math-test-image</image:caption>
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              <image:caption>math-test-image</image:caption>
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            <image:image>
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              <image:caption>math-test-image</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/Fractionstodecimals2.gif</image:loc>
              <image:caption>2 over 5 to decimal</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Fractionstodecimals1.gif</image:loc>
              <image:caption>3 over 50 to decimal</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/long-division-of-3-by-50.jpg</image:loc>
              <image:caption>Long division of three divided by fifty</image:caption>
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            <image:image>
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              <image:caption>Three divided by fifty</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Fractionstodecimals3.gif</image:loc>
              <image:caption>4 over 125 to decimal</image:caption>
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            <loc>https://www.basic-mathematics.com/fractions-worksheets.html</loc>
            <lastmod>2022-08-24T09:11:47.000000Z</lastmod>
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      <url>
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            <lastmod>2024-10-30T12:30:19.000000Z</lastmod>
            <image:image>
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              <image:caption>Examples of benchmark fractions</image:caption>
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            <image:image>
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              <image:caption>Adding fractions with pizza</image:caption>
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            <image:image>
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              <image:caption>Equivalent fractions</image:caption>
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              <image:caption>One-fourth</image:caption>
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              <image:caption>Free fall equations</image:caption>
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              <image:caption>Free fall of a ball</image:caption>
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            <image:image>
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              <image:caption>Free fall of a ball</image:caption>
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      <url>
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            <image:image>
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              <image:caption>Frequency distribution of quantitative data with classes</image:caption>
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            <image:image>
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            <image:image>
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              <image:caption>Galileo&#39;s experiment</image:caption>
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              <image:caption>Galileo&#39;s experiment</image:caption>
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              <image:caption>Galileo&#39;s experiment</image:caption>
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              <image:caption>Table showing number of T-shirts and pants</image:caption>
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              <image:caption>Investing in bonds</image:caption>
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              <image:caption>Redemption value of 100 dollars</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/irrational-numbers.html</loc>
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              <image:caption>Irrational numbers</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/irrational-root-theorem.html</loc>
            <lastmod>2021-12-01T09:17:02.000000Z</lastmod>
      </url>
      <url>
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              <image:caption>Isometric drawing of the front and top of a fridge</image:caption>
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              <image:caption>Contingency table of dependent events</image:caption>
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            <image:image>
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              <image:caption>Contingency table of independent events</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/judys-weight.html</loc>
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      <url>
            <loc>https://www.basic-mathematics.com/kindergarten-math-concepts.html</loc>
            <lastmod>2022-09-25T10:16:41.000000Z</lastmod>
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            <image:image>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/longer-and-shorter.png</image:loc>
              <image:caption>The ipad on the left is longer than the ipad on the right.</image:caption>
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            <image:image>
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              <image:caption>Addends</image:caption>
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            <image:image>
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            <image:image>
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              <image:caption>Illustration of a triangle</image:caption>
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            <image:image>
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            <image:image>
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              <image:caption>The man on the right is taller than the man on the left.</image:caption>
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            <image:image>
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            <image:image>
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              <image:caption>Heavier and lighter</image:caption>
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            <image:image>
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              <image:caption>Line</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/difference.png</image:loc>
              <image:caption>Difference between 8 and 3 is 5</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/example-of-sequence.png</image:loc>
              <image:caption>Sequence</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/greater-than.png</image:loc>
              <image:caption>4 tennis balls is more than 2 soccer balls</image:caption>
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            <image:image>
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              <image:caption>Illustration of adding three and two</image:caption>
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            <image:image>
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              <image:caption>Digits from to zero to nine</image:caption>
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            <image:image>
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            <image:image>
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            <image:image>
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              <image:caption>Examples of cylinder</image:caption>
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            <image:image>
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              <image:caption>Place value of 26 using base ten blocks</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equal-to.png</image:loc>
              <image:caption>Equal to</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/length.png</image:loc>
              <image:caption>Length</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Decompose-a-number.png</image:loc>
              <image:caption>Decompose a number</image:caption>
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            <image:image>
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              <image:caption>rectangle shape</image:caption>
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            <image:image>
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              <image:caption>3-dimensional figures</image:caption>
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            <image:image>
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            <image:image>
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              <image:caption>Celestial bobies</image:caption>
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            <image:image>
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              <image:caption>Geometric shapes</image:caption>
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            <image:image>
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              <image:caption>Lattice method for multiplication</image:caption>
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              <image:caption>Lattice method for multiplication</image:caption>
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              <image:caption>Lattice method for multiplication</image:caption>
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              <image:caption>Lattice method for multiplication</image:caption>
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              <image:caption>Lattice method for multiplication</image:caption>
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            <image:image>
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              <image:caption>Lattice method for multiplication</image:caption>
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            <image:image>
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              <image:caption>Lattice method for multiplication</image:caption>
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              <image:caption>Law of reflection</image:caption>
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              <image:caption>Law of reflection</image:caption>
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              <image:caption>Law of sines</image:caption>
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              <image:caption>The letters A, B, C, D, E, and M have only 1 line of symmetry</image:caption>
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            <lastmod>2022-09-18T20:05:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/least-common-multiple-diagram.gif</image:loc>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-professor.html</loc>
            <lastmod>2021-06-06T07:53:09.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/high-school-math-teacher1.jpg</image:loc>
              <image:caption>Math professor</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-skills-assessment.html</loc>
            <lastmod>2025-10-25T13:51:33.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-skills-by-grade.html</loc>
            <lastmod>2023-09-08T19:34:37.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-trick-to-square-numbers-from-50-to-59.html</loc>
            <lastmod>2024-02-23T09:46:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quiz-on-equations-and-inequalities.html</loc>
            <lastmod>2025-06-05T10:24:34.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quiz-on-exponents-and-polynomials.html</loc>
            <lastmod>2025-06-03T07:42:33.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quiz-on-factoring-polynomials.html</loc>
            <lastmod>2025-05-26T10:32:31.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quiz-on-graphing.html</loc>
            <lastmod>2025-05-26T07:01:35.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quiz-on-rational-expressions.html</loc>
            <lastmod>2025-05-22T11:37:15.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quiz-on-real-numbers.html</loc>
            <lastmod>2025-05-20T10:36:11.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quiz-on-solving-systems-of-linear-equations-and-inequalities.html</loc>
            <lastmod>2025-05-21T11:54:15.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-vocabulary-quizzes.html</loc>
            <lastmod>2022-11-09T08:56:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/QUIZ.jpg</image:loc>
              <image:caption>Math vocabulary quiz</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/math-websites.html</loc>
            <lastmod>2021-04-21T12:50:38.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/matrix-calculator.html</loc>
            <lastmod>2024-09-27T07:35:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/matrix-determinant-visualizer.html</loc>
            <lastmod>2025-12-02T13:35:27.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/matrix-inverse-visualizer.html</loc>
            <lastmod>2025-10-03T16:34:16.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/matrix-multiplication-visualizer.html</loc>
            <lastmod>2025-09-30T21:01:11.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/max-and-marys-picnic.html</loc>
            <lastmod>2022-09-18T20:13:41.220479Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mayan-numeration-system.html</loc>
            <lastmod>2021-06-06T08:14:43.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num3.gif</image:loc>
              <image:caption>100 in Mayan numeration</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num.gif</image:loc>
              <image:caption>Mayan chart: 0-19</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num1.gif</image:loc>
              <image:caption>0, 1, and 5 in Mayan numeration</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num2.gif</image:loc>
              <image:caption>20 in Mayan numeration</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num9.gif</image:loc>
              <image:caption>3631 in Mayan numeration</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num4.gif</image:loc>
              <image:caption>2007 in Mayan numeration</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num6.gif</image:loc>
              <image:caption>368024554 in Mayan numeration</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num8.gif</image:loc>
              <image:caption>3631 in Mayan numeration</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Mayan-num7.gif</image:loc>
              <image:caption>368024554 in Mayan numeration</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mean-from-a-frequency-table.html</loc>
            <lastmod>2021-06-22T07:21:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/mean-from-a-frequency-table.png</image:loc>
              <image:caption>Mean from a frequency table</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mean-median-mode-range-worksheets.html</loc>
            <lastmod>2021-04-21T13:14:00.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mean-of-a-discrete-random-variable.html</loc>
            <lastmod>2022-02-22T13:23:38.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mean-of-the-sampling-distribution.html</loc>
            <lastmod>2021-09-05T08:25:09.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/meaning-of-percent.html</loc>
            <lastmod>2024-12-15T11:56:53.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sixteen-percent.png</image:loc>
              <image:caption>Sixteen percent = 16%</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/measure-angles-with-a-protractor.html</loc>
            <lastmod>2025-08-13T15:33:16.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/measurement-benchmarks.html</loc>
            <lastmod>2024-12-10T08:34:19.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/benchmarks-for-some-customary-units.png</image:loc>
              <image:caption>Benchmarks for some customary units</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/benchmarks-for-some-metric-units.png</image:loc>
              <image:caption>Benchmarks for some metric units</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/measures-of-central-tendency.html</loc>
            <lastmod>2024-10-14T13:37:45.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Measures-of-central-tendency.png</image:loc>
              <image:caption>Measures of central tendency</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/measures-of-central-tendency.jpg</image:loc>
              <image:caption>Measures of central tendency</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/measures-of-dispersion.html</loc>
            <lastmod>2022-08-18T08:09:45.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/measures-of-dispersion.png</image:loc>
              <image:caption>Measures of dispersion</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/median-calculator.html</loc>
            <lastmod>2024-09-06T07:43:22.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/median-of-a-set-of-data.html</loc>
            <lastmod>2021-09-06T08:46:45.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/finding-the-median-of-a-set-of-data.png</image:loc>
              <image:caption>Find the median of a set of data</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/metric-conversion-factors.html</loc>
            <lastmod>2024-12-11T12:48:45.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/metric-conversion-factors.png</image:loc>
              <image:caption>Metric conversion factors</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/metric-conversion.html</loc>
            <lastmod>2024-12-11T10:32:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/metric-measurement.html</loc>
            <lastmod>2024-12-09T13:54:55.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/metric-measurement.png</image:loc>
              <image:caption>Metric measurement</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/middle-school-math-teacher.html</loc>
            <lastmod>2021-12-09T10:42:44.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/high-school-math-teacher1.jpg</image:loc>
              <image:caption>Middle school math teacher</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/midpoint-of-a-line-segment.html</loc>
            <lastmod>2021-06-06T11:14:49.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/midpoint.gif</image:loc>
              <image:caption>Midpoint</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/midpoint1.gif</image:loc>
              <image:caption>Midpoint</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/midrange-of-a-data-set.html</loc>
            <lastmod>2021-06-22T07:25:22.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/military-time-converter.html</loc>
            <lastmod>2024-12-06T13:45:54.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mind-twisting-vacation-trip-with-proportion.html</loc>
            <lastmod>2022-09-19T12:12:06.912177Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/missing-dollar-puzzle.html</loc>
            <lastmod>2025-09-17T13:20:47.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mixture-word-problem-with-sand-and-soil.html</loc>
            <lastmod>2017-08-27T13:36:31.505361Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mixture-word-problem.html</loc>
            <lastmod>2022-10-10T09:46:47.255376Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mixture-word-problems.html</loc>
            <lastmod>2021-04-21T14:54:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/mixture-word-problems.png</image:loc>
              <image:caption>Mixture word problems</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mode-calculator.html</loc>
            <lastmod>2024-09-07T20:51:00.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/modeling-exponential-decay.html</loc>
            <lastmod>2021-06-06T11:19:50.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/exponential-decay.png</image:loc>
              <image:caption>Modeling exponential decay</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/modeling-exponential-growth.html</loc>
            <lastmod>2021-06-06T11:22:49.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/exponential-growth.png</image:loc>
              <image:caption>Modeling exponential growth</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/modeling-integers.html</loc>
            <lastmod>2025-05-18T15:14:01.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip2.gif</image:loc>
              <image:caption>Some models for 0</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip5.gif</image:loc>
              <image:caption>Modeling -3 + 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip4.gif</image:loc>
              <image:caption>Modeling -2 + -1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip.gif</image:loc>
              <image:caption>Yellow and red chips representing 1 and -1 respectively</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip7.gif</image:loc>
              <image:caption>Modeling -4 - -2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip1.gif</image:loc>
              <image:caption>model for 4, -1, and -3</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip9.gif</image:loc>
              <image:caption>Modeling -4 - 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip8.gif</image:loc>
              <image:caption>Modeling -4 - 2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/chip6.gif</image:loc>
              <image:caption>Modeling -3 + 2</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/modeling-multiplication.html</loc>
            <lastmod>2021-06-06T11:46:59.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/How-to-multiply-negative-4-by-2.png</image:loc>
              <image:caption>How to multiply -4 by +2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/number-counters.png</image:loc>
              <image:caption>Number counters</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/How-to-multiply-4-by-negative-2.png</image:loc>
              <image:caption>How to multiply 4 by -2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Model-of-negative-eight.png</image:loc>
              <image:caption>Model of -8</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Model-of-negative-four-by-positive-two.png</image:loc>
              <image:caption>Model of negative four times positive two</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/modeling-of-4-times-negative-2.png</image:loc>
              <image:caption>Modeling of 4 times -2 with number counters</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/modeling-of-3-times-2.png</image:loc>
              <image:caption>Modeling of 3 times 2 with number counters</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mom-how-many-pens-and-pencils.html</loc>
            <lastmod>2022-09-18T19:04:45.024919Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/momentum-and-collisions.html</loc>
            <lastmod>2022-09-12T11:19:11.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/collisions5.png</image:loc>
              <image:caption>Elastic collisions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/collisions4.png</image:loc>
              <image:caption>Elastic collisions</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/momentum-word-problems.html</loc>
            <lastmod>2021-04-21T17:13:41.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-by-11.html</loc>
            <lastmod>2021-04-21T17:18:49.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Multiplication-by-11.gif</image:loc>
              <image:caption>Multiplication by 11</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-calculator.html</loc>
            <lastmod>2024-09-22T11:19:32.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-in-base-five.html</loc>
            <lastmod>2021-06-06T12:06:53.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/difference-between-base-10-and-base-5.png</image:loc>
              <image:caption>Difference between base 10 and base 5</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplication-in-base-five.png</image:loc>
              <image:caption>Multiplication in base five</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-in-base-two.html</loc>
            <lastmod>2021-06-06T12:22:52.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplication-in-base-two.png</image:loc>
              <image:caption>Multiplication in base two</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-of-binomials-geometrically.html</loc>
            <lastmod>2021-06-06T12:56:23.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-model4.jpg</image:loc>
              <image:caption>Area model of (x - 4)(x - 2)</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-model.jpg</image:loc>
              <image:caption>Area model of (x + 4)(x + 4)</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-model3.jpg</image:loc>
              <image:caption>Area model of (x + 4)(x - 2)</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-model2.jpg</image:loc>
              <image:caption>Area model of (x + 3)(x + 2)</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-of-radicals.html</loc>
            <lastmod>2021-06-06T13:02:25.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplication-of-radicals.png</image:loc>
              <image:caption>Multiplication of radicals</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-table.html</loc>
            <lastmod>2024-12-18T20:09:44.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplication-table-image1.jpg</image:loc>
              <image:caption>Multiplication table</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplication-word-problems.html</loc>
            <lastmod>2021-06-06T13:06:39.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplication-word-problems.png</image:loc>
              <image:caption>Multiplication word problem</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiply-3-digit-numbers-having-a-zero-in-the-tens-place.html</loc>
            <lastmod>2024-02-12T16:58:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiply-3-digit-numbers.png</image:loc>
              <image:caption>Multiply 3-digit numbers having a zero in the tens place</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiply-999-by-5.html</loc>
            <lastmod>2024-02-04T11:57:24.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiply-a-repdigit-number-by-a-single-digit-number.html</loc>
            <lastmod>2024-02-09T13:25:12.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/repdigit-times-single-digit.png</image:loc>
              <image:caption>Repdigit number times a single-digit number</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiply-a-two-digit-number-by-101.html</loc>
            <lastmod>2024-02-16T09:22:58.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiply-fractions-calculator.html</loc>
            <lastmod>2024-10-03T11:31:39.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiply-matrices.html</loc>
            <lastmod>2025-05-18T15:11:26.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiply-matrices1.png</image:loc>
              <image:caption>Multiply matrices</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/adding-the-same-matrix-four-times.png</image:loc>
              <image:caption>Adding the same matrix four times</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiply-matrices3.png</image:loc>
              <image:caption>Multiply matrices</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiply-matrices2.png</image:loc>
              <image:caption>Multiply matrices</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-matrices.png</image:loc>
              <image:caption>Multiplying matrices</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiply-matrices4.png</image:loc>
              <image:caption>Multiply matrices</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiply-matrices.png</image:loc>
              <image:caption>multiply matrices</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiply-using-partial-products.html</loc>
            <lastmod>2021-06-06T13:10:09.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-using-partial-products.png</image:loc>
              <image:caption>Multiply using partial products</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-and-subtracting-integers-word-problem.html</loc>
            <lastmod>2022-10-10T12:08:44.581926Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-binomials.html</loc>
            <lastmod>2025-05-18T15:10:32.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/FOIL1.gif</image:loc>
              <image:caption>First and last in FOIL</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/FOIL2.gif</image:loc>
              <image:caption>Inner and outer in FOIL</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/FOIL.gif</image:loc>
              <image:caption>Examples of FOIL</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-by-powers-of-ten.html</loc>
            <lastmod>2021-04-22T06:41:15.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-by-powers-of-ten.png</image:loc>
              <image:caption>Multiplying by powers of ten</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-complex-numbers.html</loc>
            <lastmod>2021-06-06T13:21:36.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-complex-numbers.png</image:loc>
              <image:caption>Multiplying complex numbers</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-fractions-and-total-distance.html</loc>
            <lastmod>2019-11-05T21:05:45.533185Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-fractions-word-problems.html</loc>
            <lastmod>2021-06-06T13:26:26.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplicationfractionswordproblem.gif</image:loc>
              <image:caption>Model for one-eighth</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/fractionsmultiplicationwordproblems2.gif</image:loc>
              <image:caption>Model for one-fourth</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-fractions.html</loc>
            <lastmod>2024-09-17T14:56:20.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-two-fractions.png</image:loc>
              <image:caption>Multiplying fractions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/half.png</image:loc>
              <image:caption>Half a pizza or 1/2</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/one-eighth.png</image:loc>
              <image:caption>One-eighth</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-fractions.png</image:loc>
              <image:caption>Multiplying three or more fractions</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-integers-word-problems.html</loc>
            <lastmod>2021-06-06T13:36:17.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-integers-word-problems.jpg</image:loc>
              <image:caption>Multiplying integers word problem</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-integers.html</loc>
            <lastmod>2025-05-18T15:09:57.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline14.gif</image:loc>
              <image:caption>-3 times 2 on the number line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline13.gif</image:loc>
              <image:caption>2 times 4 on the number line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/proof2.gif</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline15.gif</image:loc>
              <image:caption>3 times -2 on the number line</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-mixed-numbers.html</loc>
            <lastmod>2023-06-07T19:10:26.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-mixed-numbers.jpg</image:loc>
              <image:caption>Multiplying mixed numbers</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-polynomials.html</loc>
            <lastmod>2023-02-20T12:59:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/multiplying-polynomials.jpg</image:loc>
              <image:caption>Multiplication of polynomials</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-similar-and-dissimilar-fractions.html</loc>
            <lastmod>2022-09-19T12:39:45.243582Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/multiplying-whole-numbers.html</loc>
            <lastmod>2025-10-01T11:05:58.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mutually-exclusive-events.html</loc>
            <lastmod>2021-06-18T09:37:10.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/mutually-nonexclusive-events.png</image:loc>
              <image:caption>Mutually nonexclusive events</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/mutually-exclusive-events.png</image:loc>
              <image:caption>Mutually exclusive events</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/muuufffiiiiinnnss-and-fractions-.html</loc>
            <lastmod>2022-09-18T19:38:01.896651Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/mystery-2digit-numbers-and-systems-of-linear-equations-in-three-variables.html</loc>
            <lastmod>2022-09-22T10:08:36.821516Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/name-and-label-angles-worksheet.html</loc>
            <lastmod>2023-10-20T13:20:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Naming-and-labeling-angles2.jpg</image:loc>
              <image:caption>An acute angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/naming-and-labeling-angles4.jpg</image:loc>
              <image:caption>A right angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/name-and-label-angles.jpg</image:loc>
              <image:caption>Naming and labeling angles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/naming-and-labeling-angles3.jpg</image:loc>
              <image:caption>An obtuse angle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/names-of-large-numbers.html</loc>
            <lastmod>2024-12-20T13:59:48.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/net-force-word-problems.html</loc>
            <lastmod>2021-06-07T06:22:00.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/net-force4.png</image:loc>
              <image:caption>Net force</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/net-force3.png</image:loc>
              <image:caption>net force</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilibrium.png</image:loc>
              <image:caption>Equilibrium</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/net-force-on-an-airplane.png</image:loc>
              <image:caption>Net force on an airplane</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/net-force.html</loc>
            <lastmod>2021-06-07T06:36:01.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/net-force.png</image:loc>
              <image:caption>Net force</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/net-force1.png</image:loc>
              <image:caption>Net force</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/net-force2.png</image:loc>
              <image:caption>Net force</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/new-car-payment-calculator.html</loc>
            <lastmod>2021-04-22T08:36:21.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/newton-s-law-of-cooling.html</loc>
            <lastmod>2021-04-22T08:46:21.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/newton-s-second-law.html</loc>
            <lastmod>2025-03-26T17:32:56.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/mass-and-acceleration.png</image:loc>
              <image:caption>Mass and acceleration</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/normal-distribution-word-problems.html</loc>
            <lastmod>2021-08-13T09:05:04.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/normal-force.html</loc>
            <lastmod>2021-06-07T06:42:21.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/normal-force1.png</image:loc>
              <image:caption>Normal force</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/normal-force.png</image:loc>
              <image:caption>Normal force</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/normal-probability-distribution.html</loc>
            <lastmod>2022-02-22T13:38:57.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/normal-probability-distribution1.png</image:loc>
              <image:caption>Normal probability distribution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/normal-probability-distribution2.png</image:loc>
              <image:caption>Normal probability distribution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/normal-probability-distribution.png</image:loc>
              <image:caption>Normal probability distribution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/normal-probability-distribution3.png</image:loc>
              <image:caption>Normal probability distribution</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/number-detective.html</loc>
            <lastmod>2025-09-04T14:59:02.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/number-of-pencils-in-each-box-problem.html</loc>
            <lastmod>2022-09-19T07:17:34.966878Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/number-of-segments.html</loc>
            <lastmod>2021-04-22T09:21:25.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/3-points.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/4-points-6-segments.png</image:loc>
              <image:caption>4 points give 6 segments</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/4-points.png</image:loc>
              <image:caption>4 points</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/3-points-3-segments.png</image:loc>
              <image:caption>3 segments with 3 points</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/segment.png</image:loc>
              <image:caption>1 segment with 1 point</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/5-points-10-segments.png</image:loc>
              <image:caption>5 points give 10 segments</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/5-points-5-segments.png</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/5-points.png</image:loc>
              <image:caption>5 points</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/number-theory-test.html</loc>
            <lastmod>2025-05-21T09:01:39.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/number-trick-that-always-equals-5.html</loc>
            <lastmod>2022-09-19T12:54:50.498043Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/number-trick-with-1089.html</loc>
            <lastmod>2021-04-22T09:47:39.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/number-wizard.html</loc>
            <lastmod>2025-08-25T11:01:25.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/numeration-system.html</loc>
            <lastmod>2024-10-23T11:12:21.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/ohm-s-law-word-problems.html</loc>
            <lastmod>2021-04-22T09:56:58.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/ohm-s-law.html</loc>
            <lastmod>2022-07-04T09:19:34.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/1-ampere-circuit.png</image:loc>
              <image:caption>1 ampere circuit</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/resistance-symbol.png</image:loc>
              <image:caption>Resistance symbol</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/voltage-symbols.png</image:loc>
              <image:caption>voltage symbols</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/online-age-calculator.html</loc>
            <lastmod>2024-10-11T09:08:28.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/online-math-tests.html</loc>
            <lastmod>2025-09-11T22:24:58.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/online-math-tests.jpg</image:loc>
              <image:caption>Online math tests</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/operations-on-functions.html</loc>
            <lastmod>2021-06-07T07:12:57.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/operations-on-functions.jpg</image:loc>
              <image:caption>Operations on functions</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/operations-research-analyst.html</loc>
            <lastmod>2021-06-07T07:19:17.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/operations-research-analyst.jpg</image:loc>
              <image:caption>Operations research analyst</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/optical-illusions-with-geometry.html</loc>
            <lastmod>2021-04-22T11:52:24.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/letter-T.jpg</image:loc>
              <image:caption>Optical illusion: which line is bigger in the letter T?</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/optical-illusion.jpg</image:loc>
              <image:caption>Optical illusion</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/optical-illusion3.jpg</image:loc>
              <image:caption>Optical illusion</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/optical-illusion2.jpg</image:loc>
              <image:caption>Optical illusion</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/oral-solution-dosage-calculation.html</loc>
            <lastmod>2021-06-07T07:33:11.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/oral-solution-dosage-calculation.jpg</image:loc>
              <image:caption>Oral solution dosage calculation</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/order-of-operations-word-problems.html</loc>
            <lastmod>2021-06-07T07:41:18.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/order-ofoperations-word-problem.jpg</image:loc>
              <image:caption>Order of operations word problem</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/order-of-operations.html</loc>
            <lastmod>2025-05-18T15:05:26.000000Z</lastmod>
            <image:image>
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              <image:caption>PEMDAS</image:caption>
            </image:image>
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      <url>
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            <image:image>
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              <image:caption>Order of rotational symmetry of 6</image:caption>
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            <image:image>
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              <image:caption>Order of rotational symmetry of 1</image:caption>
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            <image:image>
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              <image:caption>Order of rotational symmetry of 2</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/orthographic-drawing.html</loc>
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              <image:caption>Front view of an orthographic drawing</image:caption>
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            <image:image>
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              <image:caption>Right side view of an orthographic drawing</image:caption>
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            <image:image>
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              <image:caption>Orthographic drawing</image:caption>
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            <image:image>
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              <image:caption>Top view of an orthographic drawing</image:caption>
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            <image:image>
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            <image:image>
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            <loc>https://www.basic-mathematics.com/parabola.html</loc>
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            <image:image>
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              <image:caption>Using the definition of a parabola</image:caption>
            </image:image>
            <image:image>
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              <image:caption>Standard equation of a parabola</image:caption>
            </image:image>
            <image:image>
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              <image:caption>Standard equation of a parabola</image:caption>
            </image:image>
            <image:image>
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            <image:image>
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              <image:caption>Parallel circuit</image:caption>
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            <image:image>
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              <image:caption>Parallel circuit</image:caption>
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            <image:image>
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              <image:caption>Parallel planes</image:caption>
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            <image:image>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Angle-abc1.png</image:loc>
              <image:caption>Angle ABC</image:caption>
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            <image:image>
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              <image:caption>Parallelogram ABCD</image:caption>
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            <image:image>
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              <image:caption>Angle ABC</image:caption>
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            <image:image>
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              <image:caption>Base and altitude of a parallelogram</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/parallelograms.png</image:loc>
              <image:caption>Parallelograms</image:caption>
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            <image:image>
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              <image:caption>Base and altitude of a parallelogram</image:caption>
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            <image:image>
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            <image:image>
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            <image:image>
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              <image:caption>Angle ABC</image:caption>
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            <image:image>
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            <image:image>
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            <image:image>
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      <url>
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            <image:image>
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              <image:caption>Percentage change</image:caption>
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            <loc>https://www.basic-mathematics.com/percentage-word-problems.html</loc>
            <lastmod>2022-11-10T10:20:26.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/percentage-word-problems4.jpg</image:loc>
              <image:caption>Percentage word problems</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/percentage-word-problems1.jpg</image:loc>
              <image:caption>Percentage word problems</image:caption>
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            <image:image>
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              <image:caption>Percentage word problems</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/percentage-word-problems2.jpg</image:loc>
              <image:caption>Percentage word problems</image:caption>
            </image:image>
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      <url>
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            <lastmod>2024-12-06T11:45:46.000000Z</lastmod>
            <image:image>
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              <image:caption>Meaning of percent worksheet</image:caption>
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            <image:image>
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              <image:caption>Percent equation worksheet</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/percent-to-decimal.png</image:loc>
              <image:caption>Percent to decimal worksheet</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/relationship-between-percent-fraction-and-decimal.png</image:loc>
              <image:caption>Relationship between percent,fraction, and decimal worksheet</image:caption>
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            <image:image>
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              <image:caption>Percent to fraction worksheet</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/finding-the-percentage.png</image:loc>
              <image:caption>Finding the percentage worksheet</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/percentiles-and-percentile-rank.html</loc>
            <lastmod>2021-06-23T07:47:13.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/percents-test.html</loc>
            <lastmod>2021-04-23T07:09:02.000000Z</lastmod>
            <image:image>
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              <image:caption>Paypal-add-to-cart-button</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/percent-shaded1.gif</image:loc>
              <image:caption>1/4 to percent</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/percent-shaded.gif</image:loc>
              <image:caption>3/8 to percent</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/percents.html</loc>
            <lastmod>2024-11-09T12:10:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Percents.jpg</image:loc>
              <image:caption>Percents</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/perfect-number.html</loc>
            <lastmod>2024-12-09T08:56:25.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/perimeter-formulas.html</loc>
            <lastmod>2021-04-23T08:11:55.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/square2.gif</image:loc>
              <image:caption>Square with side s</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/regularhexagon5.gif</image:loc>
              <image:caption>Regular hexagon with side s</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/regularpentagon5.gif</image:loc>
              <image:caption>Regular pentagon with side s</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/rhombus0.gif</image:loc>
              <image:caption>Rhombus with side s</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateraltriangle.gif</image:loc>
              <image:caption>Equilateral triangle with side s</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/perimeter-of-a-rectangle.html</loc>
            <lastmod>2021-04-23T08:22:43.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/rectangle1.gif</image:loc>
              <image:caption>Rectangle with width = w and length = l</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/perimeter-of-a-square.html</loc>
            <lastmod>2022-11-16T07:36:53.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-a-square1.png</image:loc>
              <image:caption>Perimeter of a square</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-a-square.png</image:loc>
              <image:caption>Perimeter of a square</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/perimeter-of-a-trapezoid.html</loc>
            <lastmod>2023-02-06T11:56:20.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Perimeter-of-an-isosceles-trapezoid1.png</image:loc>
              <image:caption>Perimeter of an isosceles trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-trapezoid1.jpg</image:loc>
              <image:caption>Perimeter of a trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-with-sides-equals-5-6-7-10.jpg</image:loc>
              <image:caption>Trapezoid where the sides equals to 5, 6, 7, and 10</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-a-trapezoid-with-lengths-abcd.png</image:loc>
              <image:caption>Trapezoid with side lengths a.b.c,and d</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-with-given-sides.jpg</image:loc>
              <image:caption>Perimeter of a trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-trapezoid.jpg</image:loc>
              <image:caption>Perimeter of a trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perimeter-of-trapezoid2.jpg</image:loc>
              <image:caption>Perimeter of a trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Perimeter-of-an-isosceles-trapezoid.png</image:loc>
              <image:caption>Perimeter of an isosceles trapezoid</image:caption>
            </image:image>
      </url>
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            <lastmod>2022-11-22T08:38:40.000000Z</lastmod>
            <image:image>
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              <image:caption>Perimeter of a right triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Perimeter-of-an-isosceles-triangle.png</image:loc>
              <image:caption>Perimeter of an isosceles triangle</image:caption>
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            <image:image>
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              <image:caption>Perimeter of a scalene triangle</image:caption>
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            <image:image>
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              <image:caption>Perimeter of an equilateral triangle</image:caption>
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            <lastmod>2021-04-23T09:03:30.000000Z</lastmod>
      </url>
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            <loc>https://www.basic-mathematics.com/permutation-calculator.html</loc>
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            <lastmod>2022-10-08T15:41:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/total-number-of-permutations.png</image:loc>
              <image:caption>Total number of permutations</image:caption>
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            <loc>https://www.basic-mathematics.com/permutations.html</loc>
            <lastmod>2024-10-14T13:37:10.000000Z</lastmod>
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              <image:caption>Number of permutations</image:caption>
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              <image:caption>Geometry book in box # 4</image:caption>
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              <image:caption>Basic math book in box # 2</image:caption>
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              <image:caption>Place value of the digits in 1111</image:caption>
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              <image:caption>Place value blocks</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Placevalue01.gif</image:loc>
              <image:caption>Place value</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/place-value-of-a-3248.png</image:loc>
              <image:caption>Place value of the digits in 3248</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/point-slope-form.html</loc>
            <lastmod>2021-04-23T16:59:14.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/poisson-probability-distribution.html</loc>
            <lastmod>2022-07-21T10:11:40.000000Z</lastmod>
            <image:image>
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              <image:caption>Poisson probability distribution</image:caption>
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            <image:image>
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              <image:caption>Turning points of a polynomial function</image:caption>
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            <image:image>
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              <image:caption>Polynomial function</image:caption>
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              <image:caption>Gravitational potential energy</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/powers-of-i.jpg</image:loc>
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              <image:caption>Number words</image:caption>
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            <image:image>
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              <image:caption>Count and match</image:caption>
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            <image:image>
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              <image:caption>Count and trace numbers from 6 to 9</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trace-numbers.png</image:loc>
              <image:caption>Count and trace numbers from 1 to 5</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/number-words1.png</image:loc>
              <image:caption>Number words</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/count-and-match.png</image:loc>
              <image:caption>Count and match</image:caption>
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      <url>
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            <lastmod>2024-10-08T11:58:43.000000Z</lastmod>
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            <lastmod>2024-10-08T13:18:26.000000Z</lastmod>
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              <image:caption>Prime numbers chart</image:caption>
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              <image:caption>Algebra ebook</image:caption>
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              <image:caption>Example of probability line</image:caption>
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              <image:caption>Compound events</image:caption>
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      <url>
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              <image:caption>Contingency table of dependent events</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/contingency-table-of-independent-events.png</image:loc>
              <image:caption>Contingency table of independent events</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/problem-solving-least-common-multiple.html</loc>
            <lastmod>2015-12-08T02:12:33.617809Z</lastmod>
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      <url>
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            <lastmod>2021-06-24T08:48:04.000000Z</lastmod>
      </url>
      <url>
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            <lastmod>2025-03-26T17:34:09.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/vertical-speed-of-a-projectile-launched-at-an-angle.png</image:loc>
              <image:caption>Vertical speed of a projectile launched at an angle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/horizontal-speed-of-a-cannon-ball-launched-at-an-angle.png</image:loc>
              <image:caption>horizontal speed of a cannonball launched at an angle</image:caption>
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            <image:image>
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              <image:caption>Projectile launched at an angle</image:caption>
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            <image:image>
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              <image:caption>Trajectory of a projectile launched at an angle</image:caption>
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            <lastmod>2025-03-26T17:36:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/vertical-speed-of-a-cannon-ball.png</image:loc>
              <image:caption>Vertical speed of a cannonball</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/constant-horizontal-speed-of-a-cannonball.png</image:loc>
              <image:caption>Constant horizontal speed of a cannonball</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/projectile-launched-horizontally.png</image:loc>
              <image:caption>Projectile launched horizontally</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trajectory-of-a-cannonball-launched-horizontally.png</image:loc>
              <image:caption>Trajectory of a cannonball launched horizontally</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/projectile-motion.html</loc>
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              <image:loc>https://www.basic-mathematics.com/images/projectile-motion.png</image:loc>
              <image:caption>Projectile motion</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/projectile-word-problems.html</loc>
            <lastmod>2021-06-08T05:48:59.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/projectile-word-problem2.png</image:loc>
              <image:caption>Horizontal and vertical components of a projectile launched at an angle of 60 degrees</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/projectile-word-problem1.png</image:loc>
              <image:caption>Projectile launched at an angle of 60 degrees</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/projectile-word-problem.png</image:loc>
              <image:caption>Projectile word problem</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/proof-by-mathematical-induction.html</loc>
            <lastmod>2021-06-08T05:52:54.000000Z</lastmod>
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              <image:loc>https://www.basic-mathematics.com/images/proof-by-mathematical-induction.png</image:loc>
              <image:caption>Proof by mathematical induction</image:caption>
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      </url>
      <url>
            <loc>https://www.basic-mathematics.com/proof-of-the-area-of-a-circle.html</loc>
            <lastmod>2021-06-08T06:02:33.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/square-and-octagon.gif</image:loc>
              <image:caption>Circles inscribed inside a square and inside an octagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/square-and-octagon3.gif</image:loc>
              <image:caption>Circles inscribed inside a square and inside an octagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/square-and-octagon1.gif</image:loc>
              <image:caption>Circles inscribed inside a square and inside an octagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/square-and-octagon4.gif</image:loc>
              <image:caption>Circles inscribed inside a square and inside an octagon</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/proof-of-the-area-of-a-parallelogram.html</loc>
            <lastmod>2021-04-24T07:49:58.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Area-of-Paralleogram1.gif</image:loc>
              <image:caption>Parallelogram with height h</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Area-of-Paralleogram.gif</image:loc>
              <image:caption>Parallelogram</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Make-rectangle.gif</image:loc>
              <image:caption>Turning a parallelogram into a rectangle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Area-of-Paralleogram2.gif</image:loc>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/proof-of-the-area-of-a-trapezoid.html</loc>
            <lastmod>2021-04-24T11:36:20.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area11.gif</image:loc>
              <image:caption>Area of triangles above</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area1.gif</image:loc>
              <image:caption>Average base of a trapezoid shown in red</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area.gif</image:loc>
              <image:caption>Trapezoid ABCD</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-calculation.gif</image:loc>
              <image:caption>Area of a trapezoid computation</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area2.gif</image:loc>
              <image:caption>Trapezoid turned into a rectangle</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area21.gif</image:loc>
              <image:caption>Formula of the area of a trapezoid</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area20.gif</image:loc>
              <image:caption>Average base computation</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area4.gif</image:loc>
              <image:caption>Trapezoid turned into a rectangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoid-area10.gif</image:loc>
              <image:caption>Trapezoid turned into 1 rectangle and 2 triangles</image:caption>
            </image:image>
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            <loc>https://www.basic-mathematics.com/proof-of-the-area-of-a-triangle.html</loc>
            <lastmod>2021-04-24T11:39:59.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rectangle-area1.gif</image:loc>
              <image:caption>Rectangle ABCD turned into 2 triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/area-of-a-triangle.png</image:loc>
              <image:caption>Formula for the area of a triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rectangle-area.gif</image:loc>
              <image:caption>Rectangle ABCD</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rectangle-area3.gif</image:loc>
              <image:caption>Triangle ABC with height h</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rectangle-area2.gif</image:loc>
              <image:caption>Triangle ABC</image:caption>
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            <lastmod>2021-06-08T06:16:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/triangleABC1.png</image:loc>
              <image:caption>Proof of the law of sines</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/triangleABC.png</image:loc>
              <image:caption>Proof of the law of sines</image:caption>
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            <lastmod>2022-06-03T11:51:56.000000Z</lastmod>
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              <image:caption>Right triangle</image:caption>
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              <image:loc>https://www.basic-mathematics.com/images/proof-of-the-pythagorean-theorem1.gif</image:loc>
              <image:caption>Proof of the pythagorean theorem</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/proof-of-the-pythagorean-theorem3.gif</image:loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/proof-of-the-pythagorean-theorem2.gif</image:loc>
              <image:caption>Proof of the pythagorean theorem</image:caption>
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            <lastmod>2025-09-17T15:06:42.000000Z</lastmod>
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              <image:caption>Proof of the quadratic formula</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/quadratic-formula-proof11.gif</image:loc>
              <image:caption>Proof of the quadratic formula</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/quadratic-formula-proof6.gif</image:loc>
              <image:caption>Proof of the quadratic formula</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/quadratic-formula-proof14.gif</image:loc>
              <image:caption>Proof of the quadratic formula</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/comparing-numbers.png</image:loc>
              <image:caption>Comparing numbers worksheet</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/color-the-fraction.png</image:loc>
              <image:caption>color the fraction worksheet</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/regrouping-by-making-more-ones.png</image:loc>
              <image:caption>Regrouping by making more ones worksheet</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/fill-in-the-missing-number.png</image:loc>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/second-law-of-thermodynamics.html</loc>
            <lastmod>2022-06-14T10:31:09.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Heat-engine.png</image:loc>
              <image:caption>Heat engine</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/segment-addition-postulate.html</loc>
            <lastmod>2021-04-26T08:23:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Segment4.png</image:loc>
              <image:caption>Segment addition postulate</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Segment2.png</image:loc>
              <image:caption>collinear points</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/selling-lemonade-word-problem.html</loc>
            <lastmod>2022-09-19T06:44:50.137581Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/sequences-and-patterns.html</loc>
            <lastmod>2021-04-26T08:27:14.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sequences-and-patterns.jpg</image:loc>
              <image:caption>Sequences and patterns</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/series-circuit-rules.html</loc>
            <lastmod>2023-03-21T16:49:21.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/series-circuit-and-voltage-drop.png</image:loc>
              <image:caption>Series circuit and voltage drop</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/series-circuit.png</image:loc>
              <image:caption>Series circuit</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/set-builder-notation.html</loc>
            <lastmod>2021-04-26T08:42:43.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/set-builder-notation.jpg</image:loc>
              <image:caption>Set-builder notation</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/set-notation.html</loc>
            <lastmod>2025-05-18T15:28:45.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/set-with-even-and-odd-numbers-less-than-10.jpg</image:loc>
              <image:caption>Set of even and odd whole numbers smaller than 10</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/shapes-of-histograms.html</loc>
            <lastmod>2021-06-24T08:57:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Skewed-to-the-right-histogram.png</image:loc>
              <image:caption>Skewed-to-the-right histogram</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/uniform-histogram.png</image:loc>
              <image:caption>Uniform histogram</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Skewed-to-the-left-histogram.png</image:loc>
              <image:caption>Skewed-to-the-left histogram</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/symmetric-histograms.png</image:loc>
              <image:caption>Symmetric histograms</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/sharing-money-and-equations.html</loc>
            <lastmod>2022-09-19T08:12:10.929594Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/side-splitter-theorem.html</loc>
            <lastmod>2022-03-18T12:51:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/side-splitter-theorem1-exercise.jpg</image:loc>
              <image:caption>Side-splitter theorem exercise</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/side-splitter-theorem.jpg</image:loc>
              <image:caption>Side-splitter theorem</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/similar-shapes.html</loc>
            <lastmod>2021-06-08T13:21:39.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/proportionate-rectangle.png</image:loc>
              <image:caption>Proportionate-rectangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/other-similar-figures.png</image:loc>
              <image:caption>Similar-alien</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-equilateral-triangles.png</image:loc>
              <image:caption>Similar-equilateral-triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-star-similar-arrow-similar-heart.png</image:loc>
              <image:caption>Similar-star-similar-arrow-similar-heart</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/disproportionate-rectangle.png</image:loc>
              <image:caption>Disproportionate-rectangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-squares.png</image:loc>
              <image:caption>Similar-squares</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-circles.png</image:loc>
              <image:caption>Similar circles</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/similar-triangles.html</loc>
            <lastmod>2021-04-26T09:04:43.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-triangles4.png</image:loc>
              <image:caption>Similar-triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-triangles1.png</image:loc>
              <image:caption>Similar-triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-triangles5.png</image:loc>
              <image:caption>Similar-triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-triangles2.png</image:loc>
              <image:caption>Similar-triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/similar-triangles.png</image:loc>
              <image:caption>Similar triangles</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simple-and-compound-events.html</loc>
            <lastmod>2021-06-18T09:06:57.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simple-harmonic-motion.html</loc>
            <lastmod>2022-06-28T08:16:15.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/pendulum1.png</image:loc>
              <image:caption>Simple harmonic motion</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/pendulum.png</image:loc>
              <image:caption>Pendulum</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simple-interest-calculator.html</loc>
            <lastmod>2021-04-26T09:14:12.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simple-interest.html</loc>
            <lastmod>2025-05-18T14:04:00.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/simple-interest.jpg</image:loc>
              <image:caption>Simple interest</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simple-vs-compound-interest.html</loc>
            <lastmod>2023-05-08T13:43:51.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/simple-vs-compound-interest.jpg</image:loc>
              <image:caption>Simple interest versus compound interest</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/simple-versus-compound-interest.jpg</image:loc>
              <image:caption>Simple versus compound interest</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simplify-with-algeblocks.html</loc>
            <lastmod>2025-09-14T17:56:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simplifying-algebraic-expressions.html</loc>
            <lastmod>2025-05-18T14:01:09.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/simplifying-algebraic-expressions.jpg</image:loc>
              <image:caption>Simplifying an algebraic expression</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simplifying-radical-expressions-worksheet.html</loc>
            <lastmod>2021-06-08T13:48:15.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/simplifying-radicals-containing-variables.html</loc>
            <lastmod>2021-06-08T14:01:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/simplifying-radical-containing-variables.jpg</image:loc>
              <image:caption>Simplifying radicals containing variables</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/sine-and-cosine-of-30-60-degrees-angles.html</loc>
            <lastmod>2023-06-01T07:48:29.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateral-triangle1.png</image:loc>
              <image:caption>30-60-90 triangle inside an equilateral triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateral-triangle.png</image:loc>
              <image:caption>Equilateral triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/30-60-90-triangle.png</image:loc>
              <image:caption>30-60-90 degrees triangle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/sleep-and-fraction.html</loc>
            <lastmod>2022-09-18T20:46:21.270804Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/slope-calculator.html</loc>
            <lastmod>2024-10-02T22:10:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/slope-calculator.jpg</image:loc>
              <image:caption>Slope formula</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/slope-intercept-form.html</loc>
            <lastmod>2024-11-27T12:20:34.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/slope-intercept-form.jpg</image:loc>
              <image:caption>Slope-intercept form</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/derive-slope-intercept-form.png</image:loc>
              <image:caption>Derive slope intercept form</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/slugging-percentage.html</loc>
            <lastmod>2021-06-08T14:35:07.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/slugging-percentage.jpg</image:loc>
              <image:caption>Slugging percentage</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/sohcahtoa.html</loc>
            <lastmod>2023-01-19T14:00:19.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sohcahtoa3.png</image:loc>
              <image:caption>sohcahtoa</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sohcahtoa2.png</image:loc>
              <image:caption>An example showing how to use sohcahtoa</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sohcahtoa.png</image:loc>
              <image:caption>SOHCAHTOA</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solid-figures.html</loc>
            <lastmod>2023-04-09T16:34:37.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Triangular-prism.gif</image:loc>
              <image:caption>Triangular prism</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/dodecahedron.jpg</image:loc>
              <image:caption>Dodecahedron</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/icosahedron.jpg</image:loc>
              <image:caption>Icosahedron</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Sphere1.gif</image:loc>
              <image:caption>Sphere</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Cone.gif</image:loc>
              <image:caption>Cone</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rectangularprism.gif</image:loc>
              <image:caption>Rectangular prism</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Cylinder1.gif</image:loc>
              <image:caption>Cylinder</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/tetrahedron.jpg</image:loc>
              <image:caption>Tetrahedron</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/octahedron.jpg</image:loc>
              <image:caption>Octahedron</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Cube.gif</image:loc>
              <image:caption>Cube</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Pyramid.gif</image:loc>
              <image:caption>Pyramid</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solutions-for-algebra-test.html</loc>
            <lastmod>2024-11-02T09:17:31.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solutions-of-systems-of-linear-equations.html</loc>
            <lastmod>2021-04-26T11:38:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/system-with-infinitely-many-solutions.jpg</image:loc>
              <image:caption>System with infinitely many solutions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/system-with-one-solution.jpg</image:loc>
              <image:caption>System with 1 solution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/system-with-no-solution.jpg</image:loc>
              <image:caption>System with no solutions</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solutions-of-systems-with-three-variables.html</loc>
            <lastmod>2021-09-17T09:26:30.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/systems-with-three-variables-with-no-solutions1.png</image:loc>
              <image:caption>Systems with three variables with no solution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Systems-with-three-variables-with-infine-number-of-solutions.png</image:loc>
              <image:caption>systems with three variables with an infinite number of solutions</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/One-solution-system-with-three-variables1.png</image:loc>
              <image:caption>Systems with three variables with one solution</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/systems-with-three-variables-with-no-solutions.png</image:loc>
              <image:caption>Systems with three variables with no solution</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-combination-word-problem.html</loc>
            <lastmod>2022-09-22T10:39:45.835578Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-higher-degree-polynomial-equation.html</loc>
            <lastmod>2021-11-11T09:14:25.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-matrix-equation.html</loc>
            <lastmod>2021-09-14T06:37:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-polynomial-equation-by-graphing.html</loc>
            <lastmod>2021-11-02T08:55:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/polynomial-graph.png</image:loc>
              <image:caption>Solve a polynomial equation by graphing</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-simple-system-with-five-equations.html</loc>
            <lastmod>2019-02-03T22:12:00.897841Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-system-of-equations-with-three-variables-using-elimination.html</loc>
            <lastmod>2021-09-20T06:14:30.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-system-of-equations-with-three-variables-using-substitution.html</loc>
            <lastmod>2022-09-18T12:04:46.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-system-of-linear-equations-by-using-a-table.html</loc>
            <lastmod>2021-09-12T09:02:38.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-system-of-linear-equations-to-find-the-cost-of-a-cd.html</loc>
            <lastmod>2019-01-31T22:05:23.557313Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-system-of-two-linear-equations-quickly.html</loc>
            <lastmod>2024-02-13T16:26:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/solve-quickly-a-system-of-two-linear-equations1.png</image:loc>
              <image:caption>Solve quickly a system of two linear equations</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/solve-quickly-a-system-of-two-linear-equations.png</image:loc>
              <image:caption>Solve quickly a system of two linear equations</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-a-system-without-a-unique-solution.html</loc>
            <lastmod>2021-10-04T17:29:48.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-and-graph-inequalities.html</loc>
            <lastmod>2021-08-29T08:07:56.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/x-is-smaller-than-or-equal-to-negative-seven.png</image:loc>
              <image:caption>x is smaller than or equal to negative seven</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/x-is-smaller-than-six.png</image:loc>
              <image:caption>x is smaller than 6</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/x-is-bigger-than-or-equal-to-three.png</image:loc>
              <image:caption>x is bigger than or equal to 3</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/solve-by-completing-the-square.html</loc>
            <lastmod>2023-02-09T11:54:37.000000Z</lastmod>
            <image:image>
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            <loc>https://www.basic-mathematics.com/statistics-made-easy.html</loc>
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            <image:image>
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              <image:caption>Statistics made easy</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/stem-and-leaf-plot.html</loc>
            <lastmod>2021-06-08T18:23:29.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/stem-and-leaves.png</image:loc>
              <image:caption>Stem and leaves plot</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/stem-and-leaves4.gif</image:loc>
              <image:caption>Stem and leaves plot</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/stem-and-leaves1.gif</image:loc>
              <image:caption>Stem and leaves plot</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/stem-and-leaves2.gif</image:loc>
              <image:caption>Stem and leaves plot</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/story-word-problem-linear-equation.html</loc>
            <lastmod>2022-10-10T08:49:32.476689Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/straightedge-and-compass.html</loc>
            <lastmod>2022-01-12T12:53:30.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/straightedge-and-compass1.jpg</image:loc>
              <image:caption>Straightedge and compass</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/subset-of-a-set.html</loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagrams2.gif</image:loc>
              <image:caption>Venn diagram</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagrams.gif</image:loc>
              <image:caption>Venn diagrams</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagrams1.gif</image:loc>
              <image:caption>Venn diagram</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/substitution-method.html</loc>
            <lastmod>2022-12-05T10:48:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/substitution-method.jpg</image:loc>
              <image:caption>Substitution method</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/subtracting-decimals.html</loc>
            <lastmod>2021-06-09T05:20:06.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals103.gif</image:loc>
              <image:caption>Subtracting 58.68 from 213.40</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals2.gif</image:loc>
              <image:caption>Subtracting 0.28 from 0.45</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals6.gif</image:loc>
              <image:caption>Subtracting 0.036 from 0.1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Subtractingdecimals101.gif</image:loc>
              <image:caption>Subtracting 58.68 from 213.40</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals20.gif</image:loc>
              <image:caption>Subtracting 0.28 from 0.45</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals10.gif</image:loc>
              <image:caption>Subtracting 58.68 from 213.40</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals3.gif</image:loc>
              <image:caption>Subtracting 0.25 from 0.5</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subractingdecimals5.gif</image:loc>
              <image:caption>Subtracting 0.25 from 0.5</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals102.gif</image:loc>
              <image:caption>Subtracting 58.68 from 213.40</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals9.gif</image:loc>
              <image:caption>Subtracting 58.68 from 213.40</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals8.gif</image:loc>
              <image:caption>Subtracting 0.036 from 0.1</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals1.gif</image:loc>
              <image:caption>Subtracting decimals</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals4.gif</image:loc>
              <image:caption>Subtracting 0.25 from 0.5</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractingdecimals7.gif</image:loc>
              <image:caption>Subtracting 0.036 from 0.1</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/subtracting-fractions-word-problems.html</loc>
            <lastmod>2021-06-09T05:29:44.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtracting-fractions-word-problems.jpg</image:loc>
              <image:caption>Subtracting fractions word problems</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/subtracting-fractions.html</loc>
            <lastmod>2025-05-18T13:49:44.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Fractions.jpg</image:loc>
              <image:caption>Fractions ebook cover</image:caption>
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            <image:image>
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              <image:caption>Subtracting fractions</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/subtracting-integers-word-problems.html</loc>
            <lastmod>2023-09-17T09:11:32.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtracting-integers-word-problems.jpg</image:loc>
              <image:caption>Subtracting integers word problems</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/subtracting-integers.html</loc>
            <lastmod>2024-10-27T10:56:13.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline10.gif</image:loc>
              <image:caption>1 minus  -7 on the number line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline9.gif</image:loc>
              <image:caption>-5 minus -6 on the number line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline8.gif</image:loc>
              <image:caption>4 minus 6</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline11.gif</image:loc>
              <image:caption>-1 minus 8 on the number line</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/subtracting-polynomials.html</loc>
            <lastmod>2021-06-09T05:43:51.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtracting-polynomials.jpg</image:loc>
              <image:caption>Subtracting polynomials</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/subtracting-whole-numbers.html</loc>
            <lastmod>2025-10-01T11:09:20.000000Z</lastmod>
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      <url>
            <loc>https://www.basic-mathematics.com/subtraction-calculator.html</loc>
            <lastmod>2024-09-09T18:12:40.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtraction-calculator.png</image:loc>
              <image:caption>Subtraction calculator with regrouping</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/subtraction-in-base-five.html</loc>
            <lastmod>2021-06-09T06:03:23.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtraction-in-base-five.jpg</image:loc>
              <image:caption>subtraction in base five</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/subtraction-in-base-two.html</loc>
            <lastmod>2021-06-09T06:14:21.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtraction-in-base-two.jpg</image:loc>
              <image:caption>Subtraction in base two</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/subtraction-table.html</loc>
            <lastmod>2024-12-18T16:07:22.000000Z</lastmod>
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            <loc>https://www.basic-mathematics.com/subtraction-word-problems.html</loc>
            <lastmod>2022-09-18T13:02:20.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractionproblem2.gif</image:loc>
              <image:caption>subtraction-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractionproblem3.gif</image:loc>
              <image:caption>subtraction-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtractionproblem1.gif</image:loc>
              <image:caption>subtraction-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/subtraction-word-problem.jpg</image:loc>
              <image:caption>Subtraction word problems</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/sugar-cookie-recipe-and-multiplying-fractions.html</loc>
            <lastmod>2022-09-19T10:35:07.957885Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/sum-of-all-exterior-angles-of-a-polygon.html</loc>
            <lastmod>2023-04-17T12:05:32.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sum-of-exterior-angles-of-a-polygon.jpg</image:loc>
              <image:caption>Sum of the exterior angles of a polygon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/exterior-angles.jpg</image:loc>
              <image:caption>Exterior angles</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/sum-of-arithmetic-series.html</loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/summation-notation.png</image:loc>
              <image:caption>Summation notation</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sum-of-arithmetic-series-formula.jpg</image:loc>
              <image:caption>Sum of arithmetic series formula</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/sum-of-consecutive-even-numbers.html</loc>
            <lastmod>2024-02-22T15:05:45.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/sum-of-consecutive-odd-numbers.html</loc>
            <lastmod>2024-02-22T15:07:37.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/summation-notation.html</loc>
            <lastmod>2024-10-14T13:26:16.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/supply-and-demand.html</loc>
            <lastmod>2021-06-09T06:42:26.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/supply-and-demand.jpg</image:loc>
              <image:caption>Supply and demand</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/surface-area-formula.html</loc>
            <lastmod>2023-01-25T18:05:42.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula3.gif</image:loc>
              <image:caption>Sphere-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula50.gif</image:loc>
              <image:caption>pyramid-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula2.gif</image:loc>
              <image:caption>rectangular-solid-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/blue-hemisphere.png</image:loc>
              <image:caption>Blue hemisphere</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula1.gif</image:loc>
              <image:caption>cylinder-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula.gif</image:loc>
              <image:caption>cube-image</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/hollow-cylinder.jpg</image:loc>
              <image:caption>Hollow cylinder</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula40.gif</image:loc>
              <image:caption>Cone-image</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-cone-calculator.html</loc>
            <lastmod>2024-10-04T14:47:28.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/cone-image.gif</image:loc>
              <image:caption>Surface area of a cone</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-cone.html</loc>
            <lastmod>2021-04-28T08:30:49.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula50.gif</image:loc>
              <image:caption>Pyramid with slant height l</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Pyramid-to-cone.gif</image:loc>
              <image:caption>Pyramid to cone</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/cone-image.gif</image:loc>
              <image:caption>Cone with slant height l</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Pyramid-to-cone1.gif</image:loc>
              <image:caption>Pyramid to cone</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-cube.html</loc>
            <lastmod>2021-04-28T09:30:05.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/A-cube.gif</image:loc>
              <image:caption>A cube with side a</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/cube-template.gif</image:loc>
              <image:caption>Template of a cube</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-cylinder.html</loc>
            <lastmod>2022-11-10T09:36:22.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/cylinder-template1.gif</image:loc>
              <image:caption>Cylinder template</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/circles-and-cylinder.gif</image:loc>
              <image:caption>Two circle and a folded rectangle will make a cylinder</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/surface-area-of-a-cylinder.jpg</image:loc>
              <image:caption>Surface area of a cylinder</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/net-of-a-cylinder.jpg</image:loc>
              <image:caption>Net of a cylinder</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/closed-cylinder.gif</image:loc>
              <image:caption>Cylinder made with 2 circlea and a folded rectangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/folded-rectangle.gif</image:loc>
              <image:caption>Folded rectangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/surface-area-of-an-oblique-cylinder.jpg</image:loc>
              <image:caption>Surface area of an oblique cylinder</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/surface-area-of-a-hollow-cylinder.jpg</image:loc>
              <image:caption>Surface area of a hollow cylinder</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-rectangular-prism-calculator.html</loc>
            <lastmod>2021-12-09T10:51:55.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/A-rectangular-prism.gif</image:loc>
              <image:caption>Rectangular prism</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-rectangular-prism.html</loc>
            <lastmod>2022-10-04T06:56:23.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/rectangular-prism-template.gif</image:loc>
              <image:caption>Template of rectangular prism</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/A-rectangular-prism.gif</image:loc>
              <image:caption>A rectangular prism</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-sphere-calculator.html</loc>
            <lastmod>2021-06-09T07:03:55.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sphere-with-pyramid.gif</image:loc>
              <image:caption>Sphere with pyramid</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-sphere.html</loc>
            <lastmod>2022-10-26T15:38:27.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/surface-area-of-sphere1.jpg</image:loc>
              <image:caption>Surface area of a sphere</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sphere-with-pyramid.gif</image:loc>
              <image:caption>How to derive the formula of the surface area of a sphere</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/surface-area-of-a-hemisphere.png</image:loc>
              <image:caption>Surface area of a hemisphere</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/surface-area-of-a-sphere.jpg</image:loc>
              <image:caption>Surface area of a sphere</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/surface-area-of-a-square-pyramid-calculator.html</loc>
            <lastmod>2021-06-09T07:12:24.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula50.gif</image:loc>
              <image:caption>Pyramid</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Geometric-formulas-ecover.jpg</image:loc>
              <image:caption>Geometry ebook</image:caption>
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            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/acute-angle.png</image:loc>
              <image:caption>Acute angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/negative-angle.jpg</image:loc>
              <image:caption>Negative angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/obtuse-angle.png</image:loc>
              <image:caption>Obtuse angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/vertical-angles.jpg</image:loc>
              <image:caption>Vertical angles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/what-is-an-angle.jpg</image:loc>
              <image:caption>What is an angle?</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/full-rotation-angle.png</image:loc>
              <image:caption>Full rotation angle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/zero-angle.jpg</image:loc>
              <image:caption>Zero angle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-averages.html</loc>
            <lastmod>2021-09-05T07:21:24.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-fractions.html</loc>
            <lastmod>2024-10-30T10:56:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/types-of-fractions.png</image:loc>
              <image:caption>Types of fractions</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-graphs.html</loc>
            <lastmod>2022-06-03T10:26:39.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/double-bar-graphs.gif</image:loc>
              <image:caption>Double bar graph</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bargraph1.gif</image:loc>
              <image:caption>Bar graph</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/circlegraphs4.gif</image:loc>
              <image:caption>Circle graph</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/bar-graph-for-a-quantitative-data.png</image:loc>
              <image:caption>Histogram</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/scatter-plots.gif</image:loc>
              <image:caption>Scatter plot</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/pictographs.gif</image:loc>
              <image:caption>Pictograph</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/linegraphs.gif</image:loc>
              <image:caption>Line graph</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-lines.html</loc>
            <lastmod>2024-01-30T16:35:23.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/straight-lines.png</image:loc>
              <image:caption>Straight lines</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/dashed-line.png</image:loc>
              <image:caption>Dashed line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/curved-line.png</image:loc>
              <image:caption>Curved line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/spiral-line.png</image:loc>
              <image:caption>Spiral line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/zigzag-line.png</image:loc>
              <image:caption>Zigzag line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/diagonal-line.png</image:loc>
              <image:caption>Diagonal line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/dotted-line.png</image:loc>
              <image:caption>Dotted line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/vertical-line.png</image:loc>
              <image:caption>Vertical line</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/perpendicular-lines.png</image:loc>
              <image:caption>Perpendicular lines</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/horizontal-line.png</image:loc>
              <image:caption>Horizontal line</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-polygons.html</loc>
            <lastmod>2025-05-18T13:18:22.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Heptagon.gif</image:loc>
              <image:caption>Heptagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/nonagon.gif</image:loc>
              <image:caption>Nonagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Dodecagon.gif</image:loc>
              <image:caption>Dodecagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Quadrilateral.gif</image:loc>
              <image:caption>Quadrilateral</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/regular-polygons.jpg</image:loc>
              <image:caption>Regular polygons</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Trianglepo.gif</image:loc>
              <image:caption>Triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Octagon.gif</image:loc>
              <image:caption>Octagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/irregular-polygons.jpg</image:loc>
              <image:caption>irregular polygons</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Hexagon.gif</image:loc>
              <image:caption>Hexagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Pentagon.gif</image:loc>
              <image:caption>Pentagon</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/decagon.gif</image:loc>
              <image:caption>Decagon</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-quadrilaterals.html</loc>
            <lastmod>2025-05-18T13:14:32.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/isosceles-trapezoid.jpg</image:loc>
              <image:caption>Isosceles trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Right-trapezoid.jpg</image:loc>
              <image:caption>Right trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Square.jpg</image:loc>
              <image:caption>Square</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rectangle.jpg</image:loc>
              <image:caption>Rectangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Kite.jpg</image:loc>
              <image:caption>Kite</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Scalene-trapezoid.jpg</image:loc>
              <image:caption>Scalene trapezoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Rhombus.jpg</image:loc>
              <image:caption>Rhombus</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/parallelogram.jpg</image:loc>
              <image:caption>Parallelogram</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-statistics.html</loc>
            <lastmod>2025-05-18T13:12:01.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/types-of-statistics.jpg</image:loc>
              <image:caption>Types of statistics</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-triangles.html</loc>
            <lastmod>2025-05-18T13:10:17.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/equilateral-triangle2.png</image:loc>
              <image:caption>Equilateral triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/scalene-triangle.png</image:loc>
              <image:caption>Scalene triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/right-triangle1.png</image:loc>
              <image:caption>Right triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/types-of-triangles1.png</image:loc>
              <image:caption>Types of triangles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/obtuse-triangle1.png</image:loc>
              <image:caption>Obtuse triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Acute-triangle1.png</image:loc>
              <image:caption>Acute triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/isosceles-triangle.png</image:loc>
              <image:caption>Isosceles triangle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/types-of-triangles.jpg</image:loc>
              <image:caption>Types of triangles</image:caption>
            </image:image>
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            <lastmod>2021-05-06T17:24:42.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/types-of-waves.html</loc>
            <lastmod>2022-07-28T10:06:19.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/types-of-waves.jpg</image:loc>
              <image:caption>Types of waves</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/unbiased-estimator.html</loc>
            <lastmod>2021-09-06T07:20:18.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/undefined-slope.html</loc>
            <lastmod>2025-05-18T13:06:37.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/slope17.gif</image:loc>
              <image:caption>Examples of undefined slope</image:caption>
            </image:image>
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      <url>
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            <lastmod>2021-06-09T13:58:02.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/car-financing.jpg</image:loc>
              <image:caption>Car financing</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/understanding-decimals.html</loc>
            <lastmod>2024-11-14T15:50:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/decimals.jpg</image:loc>
              <image:caption>Decimals</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/understanding-mortgage-loans.html</loc>
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              <image:caption>Mortgage loans</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/understanding-volume.html</loc>
            <lastmod>2021-06-09T18:20:28.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Container.gif</image:loc>
              <image:caption>Container looking like a rectangular prism</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/union-of-sets-calculator.html</loc>
            <lastmod>2025-03-26T16:48:41.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/union-of-sets.html</loc>
            <lastmod>2025-05-18T13:04:03.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Union-of-three-sets.gif</image:loc>
              <image:caption>Union of 3 sets</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sets.gif</image:loc>
              <image:caption>Union of sets A and B</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/sets1.gif</image:loc>
              <image:caption>Union of disjoint sets</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/AUB.gif</image:loc>
              <image:caption>Union of 2 sets</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/unit-circle.html</loc>
            <lastmod>2022-12-10T23:21:47.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle3.png</image:loc>
              <image:caption>Unit circle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle-and-trigonometric-values.png</image:loc>
              <image:caption>Unit circle and trigonometric values in the first quadrant</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle2.png</image:loc>
              <image:caption>Unit circle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle1.png</image:loc>
              <image:caption>Unit circle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle-and-all-trigonometric-values.png</image:loc>
              <image:caption>Unit circle and trigonometric values</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle.png</image:loc>
              <image:caption>Unit circle</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/units-of-speed.html</loc>
            <lastmod>2025-03-26T17:43:57.000000Z</lastmod>
            <image:image>
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              <image:caption>Units of speed in speedometer</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/units-of-time.html</loc>
            <lastmod>2021-06-09T19:52:01.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/units-of-time.png</image:loc>
              <image:caption>Units of time</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/using-the-unit-circle-to-find-sin-45-degrees.html</loc>
            <lastmod>2021-06-09T20:07:04.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/unit-circle5.png</image:loc>
              <image:caption>Unit circle</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/isosceles-triangle-unit-circle.png</image:loc>
              <image:caption>isosceles triangle and the unit circle</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/variable-element-data-set-and-observation.html</loc>
            <lastmod>2021-05-06T16:07:11.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/variables-in-algebra.html</loc>
            <lastmod>2021-04-30T07:03:34.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline210.gif</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline220.gif</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline250.gif</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline230.gif</image:loc>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/variable.jpg</image:loc>
              <image:caption>Variables in algebra</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Numberline240.gif</image:loc>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/variance-and-standard-deviation-for-grouped-data.html</loc>
            <lastmod>2021-06-23T07:37:31.000000Z</lastmod>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/velocity-word-problems.html</loc>
            <lastmod>2021-04-30T07:07:10.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/velocity-word-problem.png</image:loc>
              <image:caption>Velocity word problem</image:caption>
            </image:image>
      </url>
      <url>
            <loc>https://www.basic-mathematics.com/velocity.html</loc>
            <lastmod>2025-03-26T17:55:07.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/velocity.jpg</image:loc>
              <image:caption>Velocity</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/change-of-direction.png</image:loc>
              <image:caption>Change of direction</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/change-of-direction1.png</image:loc>
              <image:caption>In circular motion, the direction keeps changing</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/venn-diagram-word-problems.html</loc>
            <lastmod>2022-10-05T14:58:21.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagram4.jpg</image:loc>
              <image:caption>Venn diagram with two circles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagram1.jpg</image:loc>
              <image:caption>Venn diagram with two circles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagram2.jpg</image:loc>
              <image:caption>Venn diagram with two circles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/Venn-diagram3.jpg</image:loc>
              <image:caption>Venn diagram with two circles</image:caption>
            </image:image>
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      <url>
            <loc>https://www.basic-mathematics.com/vertical-angles-theorem.html</loc>
            <lastmod>2021-04-30T07:13:18.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/vertical-angles-theorem.jpg</image:loc>
              <image:caption>Vertical angles theorem</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/vertical-angles-proof.png</image:loc>
              <image:caption>vertical angles</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/vertical.png</image:loc>
              <image:caption>vertical angles</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/vertical-line-test.html</loc>
            <lastmod>2021-06-09T20:19:08.000000Z</lastmod>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/is-a-function.jpg</image:loc>
              <image:caption>Is a function</image:caption>
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            <image:image>
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              <image:caption>Not a function</image:caption>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/line-test.jpg</image:loc>
              <image:caption>Vertical line</image:caption>
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      <url>
            <loc>https://www.basic-mathematics.com/vibrations-and-waves.html</loc>
            <lastmod>2021-04-30T07:35:31.000000Z</lastmod>
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      <url>
            <loc>https://www.basic-mathematics.com/volume-formulas.html</loc>
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            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula3.gif</image:loc>
              <image:caption>Sphere</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula4.gif</image:loc>
              <image:caption>Cone</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/hollow-cylinder.png</image:loc>
              <image:caption>Hollow cylinder</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula2.gif</image:loc>
              <image:caption>Rectangular prism</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/ellipsoid.png</image:loc>
              <image:caption>Ellipsoid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula1.gif</image:loc>
              <image:caption>cylinder</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula.gif</image:loc>
              <image:caption>cube</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/triangular-prism.jpg</image:loc>
              <image:caption>Triangular prism</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/volume-formula5.gif</image:loc>
              <image:caption>Pyramid</image:caption>
            </image:image>
            <image:image>
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              <image:caption>Volume of prisms</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/trapezoidal-prism.png</image:loc>
              <image:caption>trapezoidal prism</image:caption>
            </image:image>
      </url>
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              <image:caption>Volume of a box</image:caption>
            </image:image>
      </url>
      <url>
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            <image:image>
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              <image:caption>Cone image</image:caption>
            </image:image>
            <image:image>
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              <image:caption>Geometry ebook</image:caption>
            </image:image>
      </url>
      <url>
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      <url>
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              <image:caption>Geometry ebook</image:caption>
            </image:image>
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      <url>
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            <image:image>
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              <image:caption>Volume of a pyramid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/pyramid-with-slanted-height.png</image:loc>
              <image:caption>Pyramid with slanted height</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/triangular-pyramid.png</image:loc>
              <image:caption>Triangular pyramid</image:caption>
            </image:image>
            <image:image>
              <image:loc>https://www.basic-mathematics.com/images/A-rectangular-pyramid.png</image:loc>
              <image:caption>A rectangular pyramid</image:caption>
            </image:image>
            <image:image>
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              <image:caption>A square pyramid</image:caption>
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              <image:caption>Volume of a sphere proof</image:caption>
            </image:image>
            <image:image>
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              <image:caption>Volume of a hollow sphere</image:caption>
            </image:image>
            <image:image>
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              <image:caption>Volume of a sphere</image:caption>
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            <image:image>
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              <image:caption>Volume of a sphere</image:caption>
            </image:image>
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              <image:caption>Volume of an ellipsoid</image:caption>
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              <image:caption>Geometry ebook</image:caption>
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              <image:caption>Dimension of a house</image:caption>
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