Subtraction with Regrouping: 401 − 187

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 401 − 187?

Answer

401 − 187 =
214

With regrouping across a zero: 2 borrows — there are no tens to borrow from, so 1 hundred becomes 10 tens, and 1 ten goes to the ones

401 − 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.
39+10
4(was 4, now 3)0(was 0, now 9)1 (was 1, now 11)
−187
214

Column by column: 401 − 187

  • Ones: 1 is less than 7 — borrow 1 hundred across the zero: hundreds 4 → 3, tens 0 → 9; 11 − 7 = 4 — write 4.
  • Tens: after borrowing, 9; 9 − 8 = 1 — write 1.
  • Hundreds: after borrowing, 3; 3 − 1 = 2 — write 2.

401 − 187 = 214

Second check: 401 − 214 = 187

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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 401 − 187?

401 − 187 = 214

How do you check that 401 − 187 = 214?

Add the difference and the subtrahend: 214 + 187 = 401. Getting the minuend back means the difference is right.

How many times do you borrow in 401 − 187?

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

Why does 0 become 9 when borrowing in 401 − 187?

The zero has nothing to lend, so it first borrows 1 from its left neighbour and becomes 10; then it lends 1 to the column on its right and keeps 9.

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