Subtraction with Regrouping: 538 − 149

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 538 − 149?

Answer

538 − 149 =
389

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

538 − 149 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.
412+10
5(was 5, now 4)3(was 3, now 12)8 (was 8, now 18)
−149
389

Column by column: 538 − 149

  • Ones: 8 is less than 9 — borrow 1 ten: tens 3 → 2; 18 − 9 = 9 — write 9.
  • Tens: after borrowing, 2; 2 is less than 4 — borrow 1 hundred: hundreds 5 → 4; 12 − 4 = 8 — write 8.
  • Hundreds: after borrowing, 4; 4 − 1 = 3 — write 3.

538 − 149 = 389

Second check: 538 − 389 = 149

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Column subtractions of 149

ExampleDifference
400 − 149251
405 − 149256
417 − 149268
440 − 149291
456 − 149307
474 − 149325
497 − 149348
500 − 149351
503 − 149354
525 − 149376
538 − 149389
551 − 149402
576 − 149427
600 − 149451
602 − 149453
617 − 149468
634 − 149485
668 − 149519
685 − 149536
713 − 149564

FAQ

What is 538 − 149?

538 − 149 = 389

How do you check that 538 − 149 = 389?

Add the difference and the subtrahend: 389 + 149 = 538. Getting the minuend back means the difference is right.

How many times do you borrow in 538 − 149?

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

See Also