Ordinal numbers

123456789101112131415
Across
  1. 1. 5th
  2. 3. 30th
  3. 9. 21st
  4. 10. 11th
  5. 12. 7th
  6. 13. 22nd
  7. 14. 8th
  8. 15. 3rd
Down
  1. 1. 4th
  2. 2. 9th
  3. 4. 13th
  4. 5. 10th
  5. 6. 1st
  6. 7. 6th
  7. 8. 2nd
  8. 11. 23rd
  9. 15. 12th