Across
- 5. equation with no answer
- 7. has only numbers
- 11. in place of
- 12. check
- 13. left out
Down
- 1. the way things go
- 2. the type of math you use
- 3. an important number
- 4. math problem
- 6. not reverse
- 8. done in return
- 9. uses letters
- 10. notthe same