Let’s solve each addition problem step by step. We’ll add the numbers column by column — starting from the Ones, then Tens, then Hundreds — just like you learned in class.
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Problem 1: Already solved as example → 231 + 425 = 656
We’ll skip this one since it’s already done.
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Problem 2: 571 + 124
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Ones: 1 + 4 = 5
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Tens: 7 + 2 = 9
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Hundreds: 5 + 1 = 6
→ Answer:
695
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Problem 3: 101 + 728
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Ones: 1 + 8 = 9
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Tens: 0 + 2 = 2
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Hundreds: 1 + 7 = 8
→ Answer:
829
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Problem 4: 246 + 623
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Ones: 6 + 3 = 9
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Tens: 4 + 2 = 6
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Hundreds: 2 + 6 = 8
→ Answer:
869
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Problem 5: 331 + 414
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Ones: 1 + 4 = 5
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Tens: 3 + 1 = 4
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Hundreds: 3 + 4 = 7
→ Answer:
745
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Problem 6: 491 + 108
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Ones: 1 + 8 = 9
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Tens: 9 + 0 = 9
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Hundreds: 4 + 1 = 5
→ Answer:
599
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Problem 7: 671 + 220
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Ones: 1 + 0 = 1
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Tens: 7 + 2 = 9
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Hundreds: 6 + 2 = 8
→ Answer:
891
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Problem 8: 720 + 168
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Ones: 0 + 8 = 8
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Tens: 2 + 6 = 8
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Hundreds: 7 + 1 = 8
→ Answer:
888
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Problem 9: 851 + 47
Wait — notice that 47 has no hundreds digit. That means we treat it as 0 hundreds.
So:
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Ones: 1 + 7 = 8
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Tens: 5 + 4 = 9
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Hundreds: 8 + 0 = 8
→ Answer:
898
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✔ All problems checked and verified!
Final Answer:
695
829
869
745
599
891
888
898
Parent Tip: Review the logic above to help your child master the concept of addition worksheet with place.
