Subtraction with Regrouping: 530 − 128

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 530 − 128?

Answer

530 − 128 =
402

With regrouping: 1 borrow — from the tens

530 − 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.
2+10
5 3(was 3, now 2)0 (was 0, now 10)
−128
402

Column by column: 530 − 128

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

530 − 128 = 402

Second check: 530 − 402 = 128

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Column subtractions of 128

ExampleDifference
367 − 128239
384 − 128256
396 − 128268
419 − 128291
435 − 128307
453 − 128325
476 − 128348
482 − 128354
504 − 128376
517 − 128389
530 − 128402
555 − 128427
581 − 128453
596 − 128468
613 − 128485
647 − 128519
664 − 128536
692 − 128564
706 − 128578
730 − 128602

FAQ

What is 530 − 128?

530 − 128 = 402

How do you check that 530 − 128 = 402?

Add the difference and the subtrahend: 402 + 128 = 530. Getting the minuend back means the difference is right.

How many times do you borrow in 530 − 128?

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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