Numbers

1234567891011
Across
  1. 4. one plus two
  2. 6. fifteen minus two
  3. 7. six plus six
  4. 9. ten plus ten
  5. 11. five minus four
Down
  1. 1. twenty minus two
  2. 2. nine minus five
  3. 3. three plus two
  4. 5. four plus four
  5. 8. five plus six
  6. 9. three minus one
  7. 10. eleven minus one