Numbers

1234567891011121314151617181920
Across
  1. 1. The number that comes after nineteen and before twenty-one.
  2. 5. A number equivalent to one thousand thousands or 1,000,000 individual units.
  3. 8. The number that comes after five and before seven.
  4. 9. The number representing a single item or unit.
  5. 10. The number that comes after twenty-nine and before thirty-one.
  6. 12. The number that represents nothing or an absence of quantity.
  7. 14. A number equivalent to ten groups of ten or 100 individual units.
  8. 17. A number equivalent to one thousand millions or 1,000,000,000 individual units.
  9. 18. The number that comes after two and before four.
  10. 20. The number that comes after six and before eight.
Down
  1. 2. The number that comes after eleven and before thirteen.
  2. 3. The number representing a pair or double of something.
  3. 4. The number that comes after four and before six.
  4. 6. The number that comes after fourteen and before sixteen.
  5. 7. The number that comes after three and before five.
  6. 11. A number equivalent to ten groups of one hundred or 1,000 individual units.
  7. 13. The number that represents a collection of ten units.
  8. 15. The number that comes after seven and before nine.
  9. 16. The number that comes after eight and before ten.
  10. 19. The number that comes after ten and before twelve.