Let’s solve each problem step by step using expanded form — that means breaking numbers into tens and ones, adding them separately, then combining.
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Problem 1: 36 + 28
We already have the answer filled in as 64, but let’s check it:
- 36 = 30 + 6
- 28 = 20 + 8
Add tens: 30 + 20 = 50
Add ones: 6 + 8 = 14
Total: 50 + 14 = 64
✔ Correct!
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Problem 2: 23 + 48
Break down:
- 23 = 20 + 3
- 48 = 40 + 8
Add tens: 20 + 40 = 60
Add ones: 3 + 8 = 11
Total: 60 + 11 =
71
Answer: 71
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Problem 3: 54 + 39
Break down:
- 54 = 50 + 4
- 39 = 30 + 9
Add tens: 50 + 30 = 80
Add ones: 4 + 9 = 13
Total: 80 + 13 =
93
Answer: 93
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Problem 4: 63 + 29
Break down:
- 63 = 60 + 3
- 29 = 20 + 9
Add tens: 60 + 20 = 80
Add ones: 3 + 9 = 12
Total: 80 + 12 =
92
Answer: 92
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Problem 5: 48 + 35
Break down:
- 48 = 40 + 8
- 35 = 30 + 5
Add tens: 40 + 30 = 70
Add ones: 8 + 5 = 13
Total: 70 + 13 =
83
Answer: 83
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Problem 6: 47 + 48
Break down:
- 47 = 40 + 7
- 48 = 40 + 8
Add tens: 40 + 40 = 80
Add ones: 7 + 8 = 15
Total: 80 + 15 =
95
Answer: 95
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Final Answer:
Problem 2: 71
Problem 3: 93
Problem 4: 92
Problem 5: 83
Problem 6: 95
Parent Tip: Review the logic above to help your child master the concept of expanded addition worksheet.
