INFIQ | GRADE 1 Math Worksheets- Advanced Addition - Add 1 or 10 ... - Free Printable

Let’s solve each addition problem step by step.

We are adding either 1 or 10 to a given number — no regrouping needed, so we just add directly.

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Row 1:

1. 33 + 1 → 33 plus one is 34
2. 33 + 10 → 33 plus ten is 43
3. 45 + 1 → 45 plus one is 46
4. 45 + 10 → 45 plus ten is 55

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Row 2:

5. 27 + 10 → 27 plus ten is 37
6. 27 + 1 → 27 plus one is 28
7. 30 + 10 → 30 plus ten is 40
8. 30 + 1 → 30 plus one is 31

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Row 3:

9. 58 + 1 → 58 plus one is 59
10. 58 + 10 → 58 plus ten is 68
11. 72 + 10 → 72 plus ten is 82
12. 72 + 1 → 72 plus one is 73

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All calculations checked and correct.

Final Answer:
34, 43, 46, 55, 37, 28, 40, 31, 59, 68, 82, 73