Ordinal number

12345678910
Across
  1. 3. 11th
  2. 5. 8th
  3. 8. 9th
  4. 9. 1st
  5. 10. 2nd
Down
  1. 1. 40th
  2. 2. 12th'
  3. 4. 21st
  4. 6. 20th
  5. 7. 3rd