| A | B |
| denominator | the bottom number of a fraction |
| identity prperty of addition | when you add a number to 0 the answer is that number |
| mixed number | a whole number with a fraction |
| estimate | round each number to a whole number before adding or subtracting |
| difference | the answer you get when you subtract |
| associative property | you can change the way you group the numbers you are adding, but the answer will not change |
| numerator | the top number of a fraction |
| simplify | write a fraction using smaller numbers; do this by dividing the numerator and denominator by the same number until one is the only number that will go evenly |
| communtative property | you can change the place where you put the numbers you are adding,but the answer will not change |
| improper fraction | the numerator is bigger than the denominator |
| sum | the answer you get when you add fractions |