It's easy to add and subtract fractions when the numbers on the bottom are the same. These are called the denominators. You can use equivalent fractions to make them the same. A common multiple of ...

Indices show how many times a number or letter has been multiplied by itself. Here is a number written in index form: 2 is the base number and 4 is the index or power. 2 4 is a short way of ...

Math Playground games cover different topics including fraction games, division games, multiplication games, ratio games, pre-algebra games, geometry games, and more. Check out Math Playground full ...