Subtraction with Regrouping: 1,294 − 647

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,294 − 647?

Answer

1,294 − 647 =
647

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

1,294 − 647 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.
0+108+10
1(was 1, now 0)2 (was 2, now 12)9(was 9, now 8)4 (was 4, now 14)
−647
647

Column by column: 1,294 − 647

  • Ones: 4 is less than 7 — borrow 1 ten: tens 9 → 8; 14 − 7 = 7 — write 7.
  • Tens: after borrowing, 8; 8 − 4 = 4 — write 4.
  • Hundreds: 2 is less than 6 — borrow 1 thousand: thousands 1 → 0; 12 − 6 = 6 — write 6.
  • Thousands: after borrowing, 0 — a leading zero is not written.

1,294 − 647 = 647

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Column subtractions of 647

ExampleDifference
1,289 − 647642
1,290 − 647643
1,291 − 647644
1,292 − 647645
1,293 − 647646
1,294 − 647647
1,295 − 647648
1,296 − 647649
1,297 − 647650
1,298 − 647651
1,299 − 647652

FAQ

What is 1,294 − 647?

1,294 − 647 = 647

How do you check that 1,294 − 647 = 647?

Add the difference and the subtrahend: 647 + 647 = 1,294. Getting the minuend back means the difference is right.

How many times do you borrow in 1,294 − 647?

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