Across
- 3. two times three
- 4. one times thirteen
- 6. four times twenty
- 8. two times the product of fifteen times two
- 10. eight times five
- 12. three times four
- 14. two times nine
- 16. seven times two
- 18. four times two
- 20. two times forty-five
Down
- 1. ten times six
- 2. two times two
- 5. six times five
- 7. five times ten
- 9. a number that only has one and itself as factors
- 10. three times five
- 11. one million, three hundred thousand times zero
- 13. five times two
- 15. four times five
- 17. one times nineteen
- 19. three time three