NUMBERS

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12345678910111213141516171819
Across
  1. 3. the number occurring after nineteen and before twenty one
  2. 4. the number occurring after sixty nine and before sixty one
  3. 7. the number occurring after seventeen and before nineteen
  4. 11. the number occurring after fifteen and before seventy
  5. 12. the number occurring after fourteen and before sixteen
  6. 14. the number occurring after two and before four.
  7. 16. the number occurring after eighteen and before twentyy
  8. 18. is the number occurring after nine and before eleven.
  9. 19. the number occurring after twenty nine and before thirty one
Down
  1. 1. the number occurring after thirty nine and before forty one
  2. 2. the number occurring after sixteen and before eighteen
  3. 3. the number occurring after eleven and before thirteen
  4. 5. is to first positive number in the set of natural numbers
  5. 6. the number occurring after twelve and before fourteen
  6. 8. the number occurring after fifty nine and before sixty one
  7. 9. the number occurring after ten and before twelve
  8. 10. the number occurring after thirteen and before fifteen
  9. 13. the number occurring after forty nine and before fifty one
  10. 15. the number occurring after seventy nine and before eighty one
  11. 17. the number occurring after seven and before nine