Across
- 4. mathematical operations that undo one another
- 5. acronym for remembering the order of operations
- 7. quantities with the same variable parts, which allows them to be added (subtracted) together
Down
- 1. a symbol representing an unknown number
- 2. whole numbers and their opposites
- 3. combine like terms and get rid of parentheses
- 6. the number being multiplied by a variable