Number

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Across
  1. 4. five plus seven equals
  2. 5. three plus five equals
  3. 6. ten plus nine equals
  4. 7. four plus six equals
  5. 9. three plus four equals
  6. 10. six plus eight equals
  7. 13. nine plus seven equals
  8. 15. two plus four equals
  9. 17. three minus one equals
  10. 18. two minus one equals
Down
  1. 1. nine plus eight equals
  2. 2. seven plus eight equals
  3. 3. twelve plus eight equals
  4. 8. four plus five equals
  5. 10. two plus three equals
  6. 11. one plus two equals
  7. 12. ten plus eight equals
  8. 14. six plus seven equals
  9. 16. one plus three equals
  10. 19. five plus six equals