Across
- 5. represented by the letter Z
- 6. 8/9
- 8. denoted by R
- 9. pie day
- 10. least whole number
Down
- 1. applied for right angle
- 2. non-negative counting numbers
- 3. cannot be represented by ratio
- 4. 0.99999999....
- 7. there are ____ rational numbers between two rational numbers.