ordinal number

123456789
Across
  1. 4. 52nd
  2. 6. 83rd
  3. 7. 77th
  4. 8. 31st
  5. 9. 44th
Down
  1. 1. 99th
  2. 2. 60th
  3. 3. 25th
  4. 4. 15th
  5. 5. 13th