Subtraction with Regrouping: 129 − 58

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 129 − 58?

Answer

129 − 58 =
71

With regrouping: 1 borrow — from the hundreds

129 − 58 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.
0+10
1(was 1, now 0)2 (was 2, now 12)9
−58
71

Column by column: 129 − 58

  • Ones: 9 − 8 = 1 — write 1.
  • Tens: 2 is less than 5 — borrow 1 hundred: hundreds 1 → 0; 12 − 5 = 7 — write 7.
  • Hundreds: after borrowing, 0 — a leading zero is not written.

129 − 58 = 71

Second check: 129 − 71 = 58

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See Also

FAQ

What is 129 − 58?

129 − 58 = 71

How do you check that 129 − 58 = 71?

Add the difference and the subtrahend: 71 + 58 = 129. Getting the minuend back means the difference is right.

How many times do you borrow in 129 − 58?

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