| Term | Definition |
| exponents | a shortcut for writing repeated multiplication |
| variables | a letter that represents a value that may change |
| constants | a value that does not change; any number |
| fraction | A number that names part of a whole or group. |
| mixed number | a number made up of a whole number AND a fraction |
| improper fraction | a fraction whose numerator is greater than its denominator |
| order of operations | Parentheses, Exponents, Multiplication & Division (L->R), Addition & Subtraction (L->R) |
| divisibility by 3 rule | add up the digits; if the sum is a multiple of 3 the number is divisible by 3 |
| difference | the answer to a subtraction problem |
| sum | the answer to an addition problem |