| A | B |
|---|
| sum | the answer to an addition problem |
| difference | the answer to a subtraction problem |
| product | the answer to a multiplication problem |
| quotient | the answer to a division problem |
| whole numbers | the set of counting numbers and zero (0, 1, 2, 3 . . . ) |
| factor | a number multiplied by another number to find a product |
| dividend | the number that is being divided in a division problem |
| divisor | the number that divides the dividend |
| compatible numbers | numbers that are easy to compute mentally |
| estimate | to find an approximate value (a number close to the exact amount) |
