Let's solve each of the two-digit addition problems step by step.
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1. 20 + 10
- Add the ones: 0 + 0 = 0
- Add the tens: 2 + 1 = 3
- Result:
30
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2. 19 + 21
- Add the ones: 9 + 1 = 10 → write down 0, carry over 1
- Add the tens: 1 + 2 = 3, plus the carried 1 = 4
- Result:
40
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3. 11 + 15
- Add the ones: 1 + 5 = 6
- Add the tens: 1 + 1 = 2
- Result:
26
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4. 15 + 12
- Add the ones: 5 + 2 = 7
- Add the tens: 1 + 1 = 2
- Result:
27
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5. 18 + 13
- Add the ones: 8 + 3 = 11 → write down 1, carry over 1
- Add the tens: 1 + 1 = 2, plus the carried 1 = 3
- Result:
31
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6. 35 + 25
- Add the ones: 5 + 5 = 10 → write down 0, carry over 1
- Add the tens: 3 + 2 = 5, plus the carried 1 = 6
- Result:
60
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7. 14 + 24
- Add the ones: 4 + 4 = 8
- Add the tens: 1 + 2 = 3
- Result:
38
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8. 33 + 62
- Add the ones: 3 + 2 = 5
- Add the tens: 3 + 6 = 9
- Result:
95
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9. 37 + 26
- Add the ones: 7 + 6 = 13 → write down 3, carry over 1
- Add the tens: 3 + 2 = 5, plus the carried 1 = 6
- Result:
63
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10. 23 + 46
- Add the ones: 3 + 6 = 9
- Add the tens: 2 + 4 = 6
- Result:
69
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11. 55 + 30
- Add the ones: 5 + 0 = 5
- Add the tens: 5 + 3 = 8
- Result:
85
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12. 16 + 43
- Add the ones: 6 + 3 = 9
- Add the tens: 1 + 4 = 5
- Result:
59
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✔ Final Answers:
1. 30
2. 40
3. 26
4. 27
5. 31
6. 60
7. 38
8. 95
9. 63
10. 69
11. 85
12. 59
You can now fill in the blanks on the worksheet with these answers! Let me know if you'd like a printable version or help with subtraction too. 😊
Parent Tip: Review the logic above to help your child master the concept of addition worksheet with pictures for grade 2.
