Ordinal and cardinal numbers

12345678910111213141516171819
Across
  1. 2. 6
  2. 4. 9
  3. 6. 3rd
  4. 8. 8th
  5. 11. 4
  6. 12. 1
  7. 13. 8
  8. 14. 7
  9. 15. 10
  10. 16. 4th
  11. 19. 10th
Down
  1. 1. 5
  2. 3. 1st
  3. 5. 9th
  4. 7. 2nd
  5. 9. 2
  6. 10. 7th
  7. 16. 5th
  8. 17. 3
  9. 18. 6th