| A | B |
| algebraic expression | expression that contains at least one variable |
| associative property | the sum is always the same regardless of the grouping |
| commutative property | numbers can be added or multiplied in any ordered without changing the value |
| exponent | the number that indicates how many times the base is used as the factor |
| numerical expression | contains only numbers and operations |
| variable | a symbol used to represent a number that can change |
| order of operations | rule for solving equations: parentheses, exponents, multiplication and division, addition and subtraction |
| distributive property | if you multiply a sum by a number, you will get the same result as if you would multiply each addend by that number |