Subtraction with Regrouping: 624 − 105

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 624 − 105?

Answer

624 − 105 =
519

With regrouping: 1 borrow — from the tens

624 − 105 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.
1+10
6 2(was 2, now 1)4 (was 4, now 14)
−105
519

Column by column: 624 − 105

  • Ones: 4 is less than 5 — borrow 1 ten: tens 2 → 1; 14 − 5 = 9 — write 9.
  • Tens: after borrowing, 1; 1 − 0 = 1 — write 1.
  • Hundreds: 6 − 1 = 5 — write 5.

624 − 105 = 519

Second check: 624 − 519 = 105

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412 − 105307
430 − 105325
453 − 105348
459 − 105354
481 − 105376
494 − 105389
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507 − 105402
532 − 105427
558 − 105453
573 − 105468
590 − 105485
600 − 105495
624 − 105519
641 − 105536
669 − 105564
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FAQ

What is 624 − 105?

624 − 105 = 519

How do you check that 624 − 105 = 519?

Add the difference and the subtrahend: 519 + 105 = 624. Getting the minuend back means the difference is right.

How many times do you borrow in 624 − 105?

1 borrow: 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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