| Term | Definition |
| estimate | to find an answer that's close to the exact amount |
| reasonable | not extreme |
| attribution | characteristic |
| dividend | the number being divided by another number |
| divisor | the number that another number is being divided by |
| product | the answer to a multiplication problem |
| quotient | the number that results from dividing (answer) |
| factor | a number that is multiplied by another number to find a product |
| zero property | states that the product of 0 and any number is 0 |
| commutative property | states that when the order of two factors or addends is changed; the product or sum is still the same |
| associative property | states that you can group addends or factors differently and still get the same answer |
| identity property | states that when you multiply one by any number, the answer is that number |
| distributive property | states that numbers can be broken into smaller numbers for calculating |