Across
- 4. two plus four plus five
- 5. eight minus seven
- 7. no longer a teenager!
- 9. Hugo's age at next birthday
- 11. years in a century
Down
- 1. three squared
- 2. nothing at all!
- 3. Grandpa's age
- 6. two squared
- 8. also known as a dozen
- 9. how many toes do you have?
- 10. two times four
