Across
- 3. common solution to equations
- 5. opposite of multiplication
- 7. 3x3
- 12. replacement
- 13. math problem
- 14. non-equal comparison of numbers
- 17. values of two expressions are equal
- 19. able to be changed
- 20. removal of something
Down
- 1. straight line
- 2. constant number
- 4. removal of something
- 6. undo
- 8. answer
- 9. are the same
- 10. opposite of division
- 11. squared
- 12. direction and steepness of line
- 15. diagram
- 16. root inverse of square
- 18. opposite of positive