Across
- 3. Opposite of even
- 4. Solid with six faces
- 7. Algebra & Higher Math Symbol for an unknown
- 11. Number that cannot be divided evenly by any other except 1 and itself
- 12. Number between 19 and 21
- 13. Shape with three sides
- 14. Sum of 7 and 8
- 16. Shape with four equal sides
- 17. Study of numbers and operations
- 20. Opposite of addition
Down
- 1. Circle’s boundary
- 2. Value that makes an equation true
- 5. Line that touches a curve at one point
- 6. Branch of math dealing with shapes
- 8. Longest side of a right triangle
- 9. Ratio of rise over run
- 10. Three squared
- 15. Expression with an equal sign
- 18. Half of 100
- 19. Distance across a circle