# Basic mathematics blog

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### The SAT Math Test: How To Be Prepared To Face It And Survive

The SAT Math section is known for being difficult. But it doesn’t have to be. Learn how to be prepared and complete the section with confidence here.

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### Fundamental Counting Principle

The fundamental counting principle is introduced in this lesson. Learn how to count with the multiplication principle and the addition principle.

### 45-45-90 Triangle

What is a 45-45-90 triangle? Definition, proof, area, and easy to follow real-world examples.

### Theoretical Probability - Definition, Explanation, and Examples

Learn how to compute the likelihood or probability of an event using the theoretical probability formula.

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### 30-60-90 Triangle

What is a 30-60-90 triangle? Definition, proof, area, and easy to follow real-world examples.

### Calculate the Conditional Probability using a Contingency Table

Learn to calculate the conditional probability using a contingency table. This contingency table can help you understand quickly and painlessly.

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### Rational Numbers - Definition and Examples

To learn about rational numbers, write their decimal expansion, and recognize rational numbers that are repeating decimals and terminating decimals.

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### Area of a Trapezoid - Definition, Formula, and Examples

Learn how to get the area of a trapezoid using a rectangle and a triangle, the formula, and also when the height of the trapezoid is missing.

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Learn about the quadratic formula, the discriminant, important definitions related to the formula, and applications.

### Area Formula - List of Important Formulas

What is the area formula for a two-dimensional figure? Here is a list of the ones that you must know!

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### Parallelogram - Definition, Types, and Examples

What is a parallelogram? Here is the list of all the most important things that you need to know

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### High School Physics: The Free Resources to Learn and Study

Do you need help with high school physics? Explore important basic concepts in physics.

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### How To Learn Math (And Stay Good At It!)

Find out how to learn math and stay good at it using these five steps.

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### Why is Geometry Important? (And How Can You Benefit ?)

Why is geometry important? Geometry isn't just about drawing shapes. Its practical applications are endless. See how geometry can help enhance your life.

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### What is a Unit Circle? Definition and trigonometric values

Definition of the unit circle and important trigonometric functions. Use the unit circle to derive important trigonometric values.

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### Types of Triangles

Learn to identify 6 types of triangles based on their sides or angles and 7 more types based on both their sides and angles.

### Box and Whiskers Plot

Easily learn to construct a box and whiskers plot for a set of data by using the median and the extreme values.

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### Binary Number System

This lesson will give you a deep and solid introduction to the binary number system.

### Perimeter of a Square

Check out this lesson. You will discover that finding the perimeter of a square is simple and straightforward.

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### Law of Cosines - Formula, Proof, and Examples

What is the Law of Cosines? See how you can use the law of cosines to find one side of a triangle.

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### Conjugate of a Complex Number

What is the conjugate of complex number? Definition, explanation, and examples.

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### What are Bar graphs Good for? Definition and Examples

This lesson will help you clearly understand the different types of bar graphs such as the vertical bar graph, grouped bar graph, and stacked bar graph.

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### Solving Two-Step Equations

This lesson presents the steps to take when solving two-step equations or equations of the form ax + b = c or ax - b = c.

A variety of 6th grade math problems students need to know how to solve in 6th grade.

### Second Grade Math Word Problems

A list of important second grade math word problems that students need to know how to solve in second grade

### Surface Area of a Sphere - Definition, Derivation, and Examples

Learn how to derive and compute the surface area of a sphere. The lesson is crystal clear and right to the point, but it also shows how the formula was obtained

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### Surface Area of a Cylinder - Definition, Derivation, and Examples

Learn how to compute the surface area of a cylinder, oblique cylinder, and hollow cylinder. Learn also to derive the formula.

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### Adding Integers with a Number Line and Rules for Addition of Integers

Adding integers using a number line or the rules for adding integers to find the sums of positive and negative integers.

### Fractions - Definition and Real-Life Examples

Easy to understand introduction to fractions using pizzas as a real-world example.

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### Circumference of a circle - Definition, formula, Real-World Examples

How to calculate the circumference of a circle using the circumference formula. See also some real-world examples that are easy to understand.

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### Volume of a Sphere - Definition, Formula, Derivation, and Examples

Learn how to get the volume of a sphere and the volume of the earth which is a sphere. Derivation of the volume formula With Calculus.

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### Area of a Circle - Definition, Formula, Derivation, and Examples

Different ways to calculate the area of a circle using the value of pi is what this lesson will teach you.

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### Third Grade Math Word Problems

A variety of third grade math word problems students need to know how to solve in 3rd grade.

### First Grade Math Word Problems with Lots of Examples

A variety of first grade math word problems students need to know how to solve in 1st grade.

### Multiplying Fractions

Multiplying fractions and write the product in simplest form is the goal of this lesson.

### 5th Grade Math Word Problems

A variety of 5th grade math word problems students need to know how to solve in 5th grade.

### Venn Diagram Word Problems

These Venn diagram word problems will show you how to use Venn diagrams to solve problems related to counting.

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### Percentage Word Problems

Introducing a great variety of percentage word problems to help you solve any percentage problems.

### Real-Life Applications of Slope

What are some real-life applications of slope? Slope has many applications in the real-world. Explore them here!

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### Permutation Word Problems with Solutions

Learn to solve a great variety of permutation word problems with easy to follow explanations.

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### Combination Word Problems with Solutions

Learn to solve a great variety of combination word problems with easy to follow explanations.

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### Geometric Sequence Word Problems

A variety of geometric sequence word problems that will help you strengthen your knowledge of geometric sequence.

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### Arithmetic Sequence - Definition and Formula

Learn how to describe number patterns with arithmetic sequence with a crystal clear lesson

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### Arithmetic Sequence Word Problems

A variety of arithmetic sequence word problems that will help you strengthen your knowledge of arithmetic sequence.

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## Recent Articles 1. ### How To Find The Factors Of 20: A Simple Way

Sep 17, 23 09:46 AM

There are many ways to find the factors of 20. A simple way is to...