Across
- 2. the base of the decimal system
- 3. one more than four
- 4. one more than fifteen
- 6. one more than five
- 8. comes after one
- 9. one more than eleven
- 11. one more than ten
- 12. one more than fourteen
- 15. the numeral representing nothing or no quantity
Down
- 1. one more than eight
- 2. comes after two
- 3. one more than thirteen
- 5. one more than twelve
- 7. one more than six
- 10. the first natural number
- 13. one more than three
- 14. one more than seven