Let’s solve each addition problem step by step.
We’ll add the numbers column by column, starting from the right (ones place), then move to the left (tens place). If any column adds up to 10 or more, we carry over the extra ten to the next column.
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Problem 1: 24 + 13
- Ones: 4 + 3 = 7
- Tens: 2 + 1 = 3
→ Answer:
37
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Problem 2: 37 + 11
- Ones: 7 + 1 = 8
- Tens: 3 + 1 = 4
→ Answer:
48
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Problem 3: 28 + 14
- Ones: 8 + 4 = 12 → write down 2, carry over 1
- Tens: 2 + 1 = 3, plus carried 1 = 4
→ Answer:
42
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Problem 4: 40 + 26
- Ones: 0 + 6 = 6
- Tens: 4 + 2 = 6
→ Answer:
66
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Problem 5: 35 + 28
- Ones: 5 + 8 = 13 → write down 3, carry over 1
- Tens: 3 + 2 = 5, plus carried 1 = 6
→ Answer:
63
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Problem 6: 16 + 13
- Ones: 6 + 3 = 9
- Tens: 1 + 1 = 2
→ Answer:
29
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Problem 7: 14 + 25
- Ones: 4 + 5 = 9
- Tens: 1 + 2 = 3
→ Answer:
39
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Problem 8: 13 + 22
- Ones: 3 + 2 = 5
- Tens: 1 + 2 = 3
→ Answer:
35
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Problem 9: 44 + 25
- Ones: 4 + 5 = 9
- Tens: 4 + 2 = 6
→ Answer:
69
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Problem 10: 19 + 13
- Ones: 9 + 3 = 12 → write down 2, carry over 1
- Tens: 1 + 1 = 2, plus carried 1 = 3
→ Answer:
32
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Problem 11: 40 + 23
- Ones: 0 + 3 = 3
- Tens: 4 + 2 = 6
→ Answer:
63
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Problem 12: 29 + 31
- Ones: 9 + 1 = 10 → write down 0, carry over 1
- Tens: 2 + 3 = 5, plus carried 1 = 6
→ Answer:
60
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Final Answer:
37, 48, 42, 66, 63, 29, 39, 35, 69, 32, 63, 60
Parent Tip: Review the logic above to help your child master the concept of double digit math worksheets.
