Subtraction with Regrouping: 344 − 105

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 344 − 105?

Answer

344 − 105 =
239

With regrouping: 1 borrow — from the tens

344 − 105 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
3 4(was 4, now 3)4 (was 4, now 14)
−105
239

Column by column: 344 − 105

  • Ones: 4 is less than 5 — borrow 1 ten: tens 4 → 3; 14 − 5 = 9 — write 9.
  • Tens: after borrowing, 3; 3 − 0 = 3 — write 3.
  • Hundreds: 3 − 1 = 2 — write 2.

344 − 105 = 239

Second check: 344 − 239 = 105

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See Also

FAQ

What is 344 − 105?

344 − 105 = 239

How do you check that 344 − 105 = 239?

Add the difference and the subtrahend: 239 + 105 = 344. Getting the minuend back means the difference is right.

How many times do you borrow in 344 − 105?

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