| Term | Definition |
| equivalent | two numbers or expressions that mean the same thing |
| expression | a set of operators, numbers, variables and grouping symbols; no equal sign |
| equation | two expressions that are set equal to each other; a number sentence with an equal sign |
| product | the answer to a multiplication problem |
| prime factorization | a factor string made up of prime numbers that is equivalent to a given number; use a factor tree! |
| prime | a number with only two factors, one and itself |
| composite | a number with more than two factors |
| evaluate | to find the answer for |
| divisible | able to be divided evenly (without a remainder) |
| percent | a fraction out of 100 |