Subtraction with Regrouping: 613 − 128

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 613 − 128?

Answer

613 − 128 =
485

With regrouping: 2 borrows — from the tens and the hundreds

613 − 128 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.
510+10
6(was 6, now 5)1(was 1, now 10)3 (was 3, now 13)
−128
485

Column by column: 613 − 128

  • Ones: 3 is less than 8 — borrow 1 ten: tens 1 → 0; 13 − 8 = 5 — write 5.
  • Tens: after borrowing, 0; 0 is less than 2 — borrow 1 hundred: hundreds 6 → 5; 10 − 2 = 8 — write 8.
  • Hundreds: after borrowing, 5; 5 − 1 = 4 — write 4.

613 − 128 = 485

Second check: 613 − 485 = 128

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453 − 128325
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555 − 128427
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596 − 128468
613 − 128485
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FAQ

What is 613 − 128?

613 − 128 = 485

How do you check that 613 − 128 = 485?

Add the difference and the subtrahend: 485 + 128 = 613. Getting the minuend back means the difference is right.

How many times do you borrow in 613 − 128?

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

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