Ordinal numbers

Across

2. 3rd
4. 12th
5. 4th
7. 1st
8. 23th
10. 20th
14. fifth 25th
15. 6th
18. 11th
19. second 22nd
21. 7th
22. 31st
23. 10th

Down

1. 5th
3. 9th
4. 30th
6. 27th
9. 29th
11. 14th
12. 24th
13. 15th
15. 17th
16. 16th
17. 2nd
20. 18th