Across
- 3. four plus one plus three
- 5. one plus two
- 7. six plus two plus four
- 8. five plus six plus one plus seven
- 11. nine plus two plus seven
Down
- 1. ten plus three plus one
- 2. seven plus one plus seven
- 4. six plus four plus three
- 6. one plus one
- 9. five plus six plus nine
- 10. five plus two