Subtraction with Regrouping: 417 − 149

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 417 − 149?

Answer

417 − 149 =
268

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

417 − 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.
310+10
4(was 4, now 3)1(was 1, now 10)7 (was 7, now 17)
−149
268

Column by column: 417 − 149

  • Ones: 7 is less than 9 — borrow 1 ten: tens 1 → 0; 17 − 9 = 8 — write 8.
  • Tens: after borrowing, 0; 0 is less than 4 — borrow 1 hundred: hundreds 4 → 3; 10 − 4 = 6 — write 6.
  • Hundreds: after borrowing, 3; 3 − 1 = 2 — write 2.

417 − 149 = 268

Second check: 417 − 268 = 149

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Column subtractions of 149

ExampleDifference
298 − 149149
321 − 149172
336 − 149187
352 − 149203
363 − 149214
388 − 149239
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

FAQ

What is 417 − 149?

417 − 149 = 268

How do you check that 417 − 149 = 268?

Add the difference and the subtrahend: 268 + 149 = 417. Getting the minuend back means the difference is right.

How many times do you borrow in 417 − 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