Subtraction with Regrouping: 644 − 268

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 644 − 268?

Answer

644 − 268 =
376

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

644 − 268 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.
513+10
6(was 6, now 5)4(was 4, now 13)4 (was 4, now 14)
−268
376

Column by column: 644 − 268

  • Ones: 4 is less than 8 — borrow 1 ten: tens 4 → 3; 14 − 8 = 6 — write 6.
  • Tens: after borrowing, 3; 3 is less than 6 — borrow 1 hundred: hundreds 6 → 5; 13 − 6 = 7 — write 7.
  • Hundreds: after borrowing, 5; 5 − 2 = 3 — write 3.

644 − 268 = 376

Second check: 644 − 376 = 268

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Column subtractions of 268

ExampleDifference
536 − 268268
559 − 268291
575 − 268307
593 − 268325
616 − 268348
622 − 268354
644 − 268376
657 − 268389
670 − 268402
695 − 268427
700 − 268432
721 − 268453
736 − 268468
753 − 268485
787 − 268519
800 − 268532
804 − 268536
832 − 268564
846 − 268578
870 − 268602

FAQ

What is 644 − 268?

644 − 268 = 376

How do you check that 644 − 268 = 376?

Add the difference and the subtrahend: 376 + 268 = 644. Getting the minuend back means the difference is right.

How many times do you borrow in 644 − 268?

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