Sure! Let’s solve this worksheet step by step.
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Part A: Write the ordinal numbers.
You’re given the *word form* of ordinal numbers, and you need to write the *numeric form* (with suffixes like “th”, “st”, “nd”, “rd”).
1) thirteenth → 13th
- “Thirteenth” is the 13th position.
- Rule: Numbers ending in 3 (except 13) use “rd”, but 13 is a teen number → use “th”.
✔ Answer:
13th
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2) seventh → 7th
- “Seventh” = 7th position.
- Rule: Most numbers use “th”, including 7.
✔ Answer:
7th
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3) nineteenth → 19th
- “Nineteenth” = 19th position.
- All “teen” numbers (13–19) end in “th”.
✔ Answer:
19th
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4) first → 1st
- “First” = 1st position.
- Special case: 1 → “st”
✔ Answer:
1st
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5) twenty-fifth → 25th
- “Twenty-fifth” = 25th position.
- Rule: Numbers ending in 5 → use “th”
✔ Answer:
25th
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Part B: Write the ordinal numbers in words.
You’re given the *numeric form*, and you need to write the *word form*.
1) 16th → sixteenth
- 16 → “sixteen” + “th” = “sixteenth”
- Teen numbers all end in “th”
✔ Answer:
sixteenth
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2) 4th → fourth
- 4 → “four” + “th” = “fourth”
- Note: Not “fourth” — it’s spelled “fourth”, not “forth”
✔ Answer:
fourth
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3) 22nd → twenty-second
- 22 → “twenty-two” → ordinal = “twenty-second”
- Rule: Numbers ending in 2 (except 12) → “nd”
✔ Answer:
twenty-second
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4) 10th → tenth
- 10 → “ten” + “th” = “tenth”
✔ Answer:
tenth
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5) 28th → twenty-eighth
- 28 → “twenty-eight” → ordinal = “twenty-eighth”
- Rule: Numbers ending in 8 → “th”
✔ Answer:
twenty-eighth
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✔ Final Answers:
A) Write the ordinal numbers.
1)
13th
2)
7th
3)
19th
4)
1st
5)
25th
B) Write the ordinal numbers in words.
1)
sixteenth
2)
fourth
3)
twenty-second
4)
tenth
5)
twenty-eighth
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💡
Tip for Learning Ordinals:
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1st, 2nd, 3rd are unique.
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4th–20th: mostly “th”, except 1st/2nd/3rd.
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21st, 22nd, 23rd, 24th...: follow the last digit rule (e.g., 21 ends in 1 → “st”, 22 ends in 2 → “nd”, etc.)
Let me know if you’d like a printable version or flashcards for practice! 😊
Parent Tip: Review the logic above to help your child master the concept of ordinal numbers worksheet grade 2.
