Subtraction with Regrouping: 621 − 136

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 621 − 136?

Answer

621 − 136 =
485

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

621 − 136 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.
511+10
6(was 6, now 5)2(was 2, now 11)1 (was 1, now 11)
−136
485

Column by column: 621 − 136

  • Ones: 1 is less than 6 — borrow 1 ten: tens 2 → 1; 11 − 6 = 5 — write 5.
  • Tens: after borrowing, 1; 1 is less than 3 — borrow 1 hundred: hundreds 6 → 5; 11 − 3 = 8 — write 8.
  • Hundreds: after borrowing, 5; 5 − 1 = 4 — write 4.

621 − 136 = 485

Second check: 621 − 485 = 136

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Column subtractions of 136

ExampleDifference
443 − 136307
461 − 136325
484 − 136348
490 − 136354
512 − 136376
525 − 136389
538 − 136402
563 − 136427
589 − 136453
604 − 136468
621 − 136485
655 − 136519
672 − 136536
700 − 136564
714 − 136578
738 − 136602
783 − 136647
800 − 136664
819 − 136683
900 − 136764

FAQ

What is 621 − 136?

621 − 136 = 485

How do you check that 621 − 136 = 485?

Add the difference and the subtrahend: 485 + 136 = 621. Getting the minuend back means the difference is right.

How many times do you borrow in 621 − 136?

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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