Across
- 2. To find the value of the unknown.
- 3. The sign that shows amounts are the same.
- 5. A number sentence with an equal sign and an unknown.
- 7. The inverse of addition.
- 8. What we do after solving to make sure the answer is correct.
- 9. The inverse of multiplication.
Down
- 1. The opposite operation used to solve equations.
- 4. What both sides of an equation must always be.
- 6. Repeated addition of the same number.