Let’s solve each subtraction problem step by step using regrouping (also called borrowing). We’ll do this carefully so you can see how it works.
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Problem 1: 32 - 18
- Ones place: 2 - 8 → Can’t do that! So we borrow 1 ten from the tens place.
- 3 tens become 2 tens, and 2 ones become 12 ones.
- Now: 12 - 8 = 4
- Tens place: 2 - 1 = 1
→ Answer:
14
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Problem 2: 43 - 25
- Ones place: 3 - 5 → Can’t do that! Borrow 1 ten.
- 4 tens become 3 tens, 3 ones become 13 ones.
- 13 - 5 = 8
- Tens place: 3 - 2 = 1
→ Answer:
18
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Problem 3: 63 - 47
- Ones place: 3 - 7 → Can’t do that! Borrow 1 ten.
- 6 tens become 5 tens, 3 ones become 13 ones.
- 13 - 7 = 6
- Tens place: 5 - 4 = 1
→ Answer:
16
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Problem 4: 53 - 24
- Ones place: 3 - 4 → Can’t do that! Borrow 1 ten.
- 5 tens become 4 tens, 3 ones become 13 ones.
- 13 - 4 = 9
- Tens place: 4 - 2 = 2
→ Answer:
29
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Problem 5: 32 - 16
- Ones place: 2 - 6 → Can’t do that! Borrow 1 ten.
- 3 tens become 2 tens, 2 ones become 12 ones.
- 12 - 6 = 6
- Tens place: 2 - 1 = 1
→ Answer:
16
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Problem 6: 63 - 48
- Ones place: 3 - 8 → Can’t do that! Borrow 1 ten.
- 6 tens become 5 tens, 3 ones become 13 ones.
- 13 - 8 = 5
- Tens place: 5 - 4 = 1
→ Answer:
15
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Problem 7: 23 - 16
- Ones place: 3 - 6 → Can’t do that! Borrow 1 ten.
- 2 tens become 1 ten, 3 ones become 13 ones.
- 13 - 6 = 7
- Tens place: 1 - 1 = 0 → We don’t write leading zero.
→ Answer:
7
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Problem 8: 43 - 29
- Ones place: 3 - 9 → Can’t do that! Borrow 1 ten.
- 4 tens become 3 tens, 3 ones become 13 ones.
- 13 - 9 = 4
- Tens place: 3 - 2 = 1
→ Answer:
14
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Final Answer:
Left worksheet:
32 - 18 = 14
43 - 25 = 18
63 - 47 = 16
53 - 24 = 29
Right worksheet:
32 - 16 = 16
63 - 48 = 15
23 - 16 = 7
43 - 29 = 14
Parent Tip: Review the logic above to help your child master the concept of subtraction with regrouping worksheet base.
