| A | B |
|---|
| variable | a symbol, usually a letter, that represents one or more numbers |
| algebraic expression | a mathematical phrase that can contain numbers, variables and operation symbols |
| equation | a mathematical sentence that uses an equal sign |
| open sentence | an equation that contains one or more variables |
| simplify | replace an expression with its simplest anme or form |
| exponent | a number that shows repeated multiplication |
| base | a number that is multiplied repeatedly |
| power | The base and the exponent of an expression of the form a^n |
| order of operations | PEMDAS - the order in which operations are performed |
| evaluate | substitute a given number for each variable |
