Across
- 1. Addition, subtraction, multiplication and division that undo each other.
- 5. This has two sides and an equals sign in the middle
- 7. The operation you use to undo addition
- 8. This property says that whatever you do to one side of an equation you do to the other.
Down
- 2. The operation you use to undo subtraction.
- 3. You do this with your solution to replace the variable.
- 4. You substitute your answer in for this.
- 6. Operations(addition and subtraction) have this relationship.