Across
- 3. three-dimensional
- 5. bottom of a shape
- 8. being responsible for something
- 10. something that has value
- 11. natural numbers
- 12. how long something is
- 14. another word for customer
- 16. involves place value
- 17. deduction
- 18. positive and negative
- 20. triangular in shape
Down
- 1. includes zero
- 2. a ratio
- 4. money earned
- 6. a brick
- 7. all types of numbers
- 9. a person's salary
- 13. how tall something is
- 15. sum of money paid regularly
- 19. how wide something is