Subtraction with Regrouping: 32 − 15

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 32 − 15?

Answer

32 − 15 =
17

With regrouping: 1 borrow — from the tens

32 − 15 in a column. Above the columns: the values after borrowing — a crossed-out digit is replaced by the number above it; +10 marks a column that received a borrowed ten.
2+10
3(was 3, now 2)2 (was 2, now 12)
−15
17

Column by column: 32 − 15

  • Ones: 2 is less than 5 — borrow 1 ten: tens 3 → 2; 12 − 5 = 7 — write 7.
  • Tens: after borrowing, 2; 2 − 1 = 1 — write 1.

32 − 15 = 17

Second check: 32 − 17 = 15

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Recalculate with different values ↑

Column subtractions of 15

ExampleDifference
30 − 1515
32 − 1517
34 − 1519
38 − 1523
41 − 1526
43 − 1528
49 − 1534
51 − 1536
54 − 1539
56 − 1541
60 − 1545
62 − 1547
67 − 1552
69 − 1554
73 − 1558
78 − 1563
80 − 1565
82 − 1567
84 − 1569
86 − 1571

FAQ

What is 32 − 15?

32 − 15 = 17

How do you check that 32 − 15 = 17?

Add the difference and the subtrahend: 17 + 15 = 32. Getting the minuend back means the difference is right.

How many times do you borrow in 32 − 15?

1 borrow: each time the top digit was smaller than the one below it, 1 was borrowed from the column on the left.

See Also