Subtraction with Regrouping: 478 − 187

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 478 − 187?

Answer

478 − 187 =
291

With regrouping: 1 borrow — from the hundreds

478 − 187 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.
3+10
4(was 4, now 3)7 (was 7, now 17)8
−187
291

Column by column: 478 − 187

  • Ones: 8 − 7 = 1 — write 1.
  • Tens: 7 is less than 8 — borrow 1 hundred: hundreds 4 → 3; 17 − 8 = 9 — write 9.
  • Hundreds: after borrowing, 3; 3 − 1 = 2 — write 2.

478 − 187 = 291

Second check: 478 − 291 = 187

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Recalculate with different values ↑

Column subtractions of 187

ExampleDifference
374 − 187187
390 − 187203
401 − 187214
426 − 187239
443 − 187256
455 − 187268
478 − 187291
494 − 187307
512 − 187325
535 − 187348
541 − 187354
563 − 187376
576 − 187389
589 − 187402
614 − 187427
640 − 187453
655 − 187468
672 − 187485
706 − 187519
723 − 187536

FAQ

What is 478 − 187?

478 − 187 = 291

How do you check that 478 − 187 = 291?

Add the difference and the subtrahend: 291 + 187 = 478. Getting the minuend back means the difference is right.

How many times do you borrow in 478 − 187?

1 borrow: each time the top digit was smaller than the one below it, 1 was borrowed from the column on the left.

See Also