Ordinal Numbers Worksheets - 15 Worksheets Library - Free Printable

Let's solve this step by step.

The task is to write the ordinal numbers in words. Ordinal numbers indicate position or order (e.g., 1st = first, 2nd = second, 3rd = third, etc.).

We need to convert each number with its suffix (like 33rd, 24th, etc.) into its written form in English.

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Step-by-step Conversion:

We’ll go through each one:

1. 33rd → "thirty-third"
2. 24th → "twenty-fourth"
3. 63rd → "sixty-third"
4. 55th → "fifty-fifth"
5. 99th → "ninety-ninth"
6. 75th → "seventy-fifth"
7. 73rd → "seventy-third"
8. 29th → "twenty-ninth"
9. 34th → "thirty-fourth"
10. 10th → "tenth"
11. 25th → "twenty-fifth"
12. 40th → "fortieth"
13. 100th → "hundredth"
14. 35th → "thirty-fifth"
15. 6th → "sixth"
16. 21st → "twenty-first"
17. 13th → "thirteenth"
18. 87th → "eighty-seventh"
19. 51st → "fifty-first"
20. 32nd → "thirty-second"
21. 7th → "seventh"
22. 1st → "first"

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Final Answer (filled in):

```
33rd thirty-third 24th twenty-fourth
63rd sixty-third 55th fifty-fifth
99th ninety-ninth 75th seventy-fifth
73rd seventy-third 29th twenty-ninth
34th thirty-fourth 10th tenth
25th twenty-fifth 40th fortieth
100th hundredth 35th thirty-fifth
6th sixth 21st twenty-first
13th thirteenth 87th eighty-seventh
51st fifty-first 32nd thirty-second
7th seventh 1st first
```

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Explanation:

- Ordinal numbers use suffixes: -st, -nd, -rd, -th.
- Special cases:
- Numbers ending in 1 (except 11) → -st (e.g., 21st = twenty-first)
- Numbers ending in 2 (except 12) → -nd (e.g., 22nd = twenty-second)
- Numbers ending in 3 (except 13) → -rd (e.g., 23rd = twenty-third)
- All others → -th
- For teens like 11th, 12th, 13th → they are irregular: eleventh, twelfth, thirteenth
- Tens like 20th, 30th, 40th → twentieth, thirtieth, fortieth
- 100th → hundredth

This pattern helps you write any ordinal number correctly.

✔ All answers are now filled in correctly!