NUMBERS

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12345678910111213141516171819
Across
  1. 5. the number after fifteen
  2. 6. the result of 8 + 3
  3. 7. the result of 7 + 7
  4. 9. the result of 10 + 10
  5. 11. the result of 1 + 2
  6. 13. the result of 5 + 10
  7. 14. the number before eleven
  8. 17. the number after the number eight
  9. 19. the result of 10 + 9
Down
  1. 1. the result of 10 + 2
  2. 2. the number before the number eighteen
  3. 3. the result of 3 + 2
  4. 4. the name of number after number one
  5. 7. the number after the number three
  6. 8. the result of 4 + 4
  7. 10. the result of 9 + 4
  8. 12. the result of 9 + 9
  9. 15. the result of 5 + 2
  10. 16. the number after the number five
  11. 18. the result of 2-1