Ordinal numbers

12345678910111213141516
Across
  1. 2. 3rd
  2. 3. 12th
  3. 5. 17th
  4. 8. 6th
  5. 9. 16th
  6. 10. 20th
  7. 11. 9th
  8. 12. 4th
  9. 15. 15th
  10. 16. 14th
Down
  1. 1. 18th
  2. 2. 10th
  3. 4. 19th
  4. 5. 7th
  5. 6. 11th
  6. 7. 1st
  7. 10. 13th
  8. 12. 5th
  9. 13. 8th
  10. 14. 2nd