Learn what compensation is in math. See how to use compensation to do mental math
Learn what cryptarithms are and how to solve them
See what amicable numbers are and how to find them
Find out what a perfect number is and how to find it. Use a calculator on this lesson to generate perfect numbers
Find supply and demand and equilibrium point in economics
Learn to estimate the square root fast with an easy math technique
What is experimental probability? Teach me so I understand it fast and clearly
A great variety of interesting math problems that will make you love math
This greatest possible error calculator will find the biggest error in a measurement
There absolute value word problems will teach how the absolute value can be used in the real world
An eighth grade test that can easily be printed. This test is designed to test most important skills taught in eighth grade.
A tenth grade test that can easily be printed. This test is designed to test most important skills taught in tenth grade.
What is vertical angles theorem? Explanations and proof on this site
A comprehensive 10th grade math test that is readily avalaible to print for free. The test will measure every important skill taught in commom core geometry
What is pascal's triangle? See the pattern easily with a calculator
An online age calculator to find your age to the nearest second
How many cakes can be produced ? See how to solve it with a system of linear equations
Review math for nurses here and get ready to pass the nclex
A certain value of money will be distributed among 24 students. If 6 students don't come each child will receive 300 dollars more money. Find the amount
Ricky, Carl and Jerome have a total of n candies. Ricky ate 1/4 of the candies. Carl ate 1/3 of the remaining candies. Jerome ate 1/5 of the remaining
An Italian sausage is 8 inches long. How many pieces of sausage can be cut from the 8-inch piece of sausage if each piece is to be two-thirds of an inch
Divide me by 10 and 3 remains. A square number my first digit to be. My second digit is the product of 1 and 3. All together I'm greater than 50.
Andrew had $93.00. With this money, he could buy 3 CDs and 4 books. However, he bought only 2 CDs and 3 books and had $27.00 left. What was the cost
Sergio had 8 colored pencils. He bought 3 more boxes of colored pencils. Sergio now has 35 colored pencils. If each box had the same number of pencil,
The sum of Mira and Shaheena is 40 years. After 10 years Mia will be twice as old as Shaheena. What is Mia's age. What is Shaheena's age? Solution
Mrs. william is deciding between two field tips for her class. the science center charges $135 plus $3 per student. the dino discovery museum simply charges
For his phone service, Ryan pays a monthly fee of $13.00, and he pays an additional $0.05 per minute of use. The least he has been charged in a month is
If the first and third of three odd consecutive integers are added, the result is 87 less than five times the second integer. Find the third integer.
Learn how to estimate gas cost using a simple formula. Use the calculator to estimate the cost
Alice, who is paid time-and-a half for hours in excess of 40 hours, had gross weekly wages of $667 for 52 hours worked. what is her regular hourly rate?
Sasha and Francisco were selling lemonade for 25 cents per half cup and 50 cent per full cup. At the end of the day they had collected 15 dollars and had
Amanda, Henry, and Scott have a total of $89 in thier wallets. Amanda has 6$ less than Scott. Henry has 3 times what scott has. How much does each have?
A tank is two thirds full. After drawing off 100 litres of water , it is just one quarter full. what is the capacity of the tank Solution Let x be the
Maria has 2 electronic beepers. One beeps after every 5 seconds and the second beeps after every 9 second. 1) At what time both beepers will beep at
Johnny works at a local bakery. In the morning Customer #1 buys 1/2 a pan of brownies. Later, Customer #2 buys 1/4 of the remaining brownies. The brownies
The Phillips family wants to fence their backyard. They know the yard has a perimeter of 24 meters and an area of 32 square meters. What is the yard's
The sum of squares of two consecutive odd positive integers is 202. Find the integers. Solution Let 2x + 1 be the first odd integer Then, 2x + 3 will
The perimeter of a triangle is 58 centimeters. The longest side is 2 centimeters less than the sum of the other two sides. Twice the shortest is 12 centimeters
How much does it cost to copy 4,757 pages if the cost is as following? Pages 1-25 cost 1.00 each. Pages 26-500 cost 50 cents each. Pages 501-finish
Example: mary needs 3/4 of a cup she has 2/4 of a cup how much more does she need?? 3/4 - 2/4 = ? Subtract the numerator since the fractions already
The larger of two numbers is 4 less than five times the smaller. When the smaller number is subtracted from the larger, the difference is 4. Find the numbers.
If I live to be 80 years old and sleep 8 hours a day, How many years have I slept Solution A day has 24 hours 24 = 8 + 8 + 8 So you spent 1/3 of your
Ming and Chuck were walking home one afternoon and decided to draw a chalk line on the road from school to Chuck's house. They started out with a box
Muffins: 1/4 tsp salt 1/4 oats 1 cup milk 1/2 sugar 2 cups flour makes 8 muffins Maryse wants to make 20 muffins. what does she need to do to achieve
Once upon a time, there was a family of children. The oldest of these children was in charge of making sure that each of the other children did what they