Subtraction with Regrouping: 670 − 92

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 670 − 92?

Answer

670 − 92 =
578

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

670 − 92 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.
516+10
6(was 6, now 5)7(was 7, now 16)0 (was 0, now 10)
−92
578

Column by column: 670 − 92

  • Ones: 0 is less than 2 — borrow 1 ten: tens 7 → 6; 10 − 2 = 8 — write 8.
  • Tens: after borrowing, 6; 6 is less than 9 — borrow 1 hundred: hundreds 6 → 5; 16 − 9 = 7 — write 7.
  • Hundreds: after borrowing, 5; nothing to subtract — write 5.

670 − 92 = 578

Second check: 670 − 578 = 92

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Column subtractions of 92

ExampleDifference
186 − 9294
190 − 9298
197 − 92105
228 − 92136
264 − 92172
295 − 92203
331 − 92239
360 − 92268
399 − 92307
400 − 92308
440 − 92348
468 − 92376
494 − 92402
500 − 92408
545 − 92453
577 − 92485
600 − 92508
628 − 92536
670 − 92578
739 − 92647

FAQ

What is 670 − 92?

670 − 92 = 578

How do you check that 670 − 92 = 578?

Add the difference and the subtrahend: 578 + 92 = 670. Getting the minuend back means the difference is right.

How many times do you borrow in 670 − 92?

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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