Subtraction with Regrouping: 675 − 28

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 675 − 28?

Answer

675 − 28 =
647

With regrouping: 1 borrow — from the tens

675 − 28 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.
6+10
6 7(was 7, now 6)5 (was 5, now 15)
−28
647

Column by column: 675 − 28

  • Ones: 5 is less than 8 — borrow 1 ten: tens 7 → 6; 15 − 8 = 7 — write 7.
  • Tens: after borrowing, 6; 6 − 2 = 4 — write 4.
  • Hundreds: nothing to subtract — write 6.

675 − 28 = 647

Second check: 675 − 647 = 28

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Column subtractions of 28

ExampleDifference
126 − 2898
133 − 28105
164 − 28136
200 − 28172
231 − 28203
267 − 28239
296 − 28268
300 − 28272
335 − 28307
376 − 28348
400 − 28372
404 − 28376
430 − 28402
481 − 28453
500 − 28472
513 − 28485
564 − 28536
600 − 28572
606 − 28578
675 − 28647

FAQ

What is 675 − 28?

675 − 28 = 647

How do you check that 675 − 28 = 647?

Add the difference and the subtrahend: 647 + 28 = 675. Getting the minuend back means the difference is right.

How many times do you borrow in 675 − 28?

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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