Ordinal numbers

12345678910111213141516171819
Across
  1. 1. 2nd
  2. 4. 7th
  3. 6. 6th
  4. 7. 12th
  5. 9. 14th
  6. 11. 17th
  7. 12. 15th
  8. 14. 11th
  9. 15. 18th
  10. 18. 16th
  11. 19. 1st
Down
  1. 2. 19th
  2. 3. 13th
  3. 5. 8th
  4. 8. 4th
  5. 10. 20th
  6. 12. 5th
  7. 13. 3rd
  8. 16. 9th
  9. 17. 10th