Across
- 1. the first prime number
- 3. the third prime number
- 6. the second odd number
- 7. whole number before twenty one
- 8. double digit whole number after ten
Down
- 1. whole number after twenty nine
- 2. the first odd whole number
- 4. tenth whole number
- 5. smallest whole number
- 7. the whole number after eleven
