| A | B |
|---|
| evaluate | substitute values for variables, then simplify |
| area | the number of square units needed to cover a figure |
| variable expression | contains numbers, variables, and operations |
| perimeter | the sum of the lengths of the sides of a figure |
| variable | a letter used to represent one or more numbers |
| power | is a way of writing repeated multiplication |
| exponent | the number of times a factor is used |
| pattern | things that are arranged following rules |
| PEMDAS | order of operations |
| Parenthesis then ... | exponents |
| Exponents then ... | multiplication |
| Always first in order of operations | parenthesis |
