Subtraction with Regrouping: 1,330 − 647

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,330 − 647?

Answer

1,330 − 647 =
683

With regrouping: 3 borrows — from the tens, the hundreds and the thousands

1,330 − 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.
01212+10
1(was 1, now 0)3(was 3, now 12)3(was 3, now 12)0 (was 0, now 10)
−647
683

Column by column: 1,330 − 647

  • Ones: 0 is less than 7 — borrow 1 ten: tens 3 → 2; 10 − 7 = 3 — write 3.
  • Tens: after borrowing, 2; 2 is less than 4 — borrow 1 hundred: hundreds 3 → 2; 12 − 4 = 8 — write 8.
  • Hundreds: after borrowing, 2; 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.

1,330 − 647 = 683

Second check: 1,330 − 683 = 647

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Recalculate with different values ↑

Column subtractions of 647

ExampleDifference
1,325 − 647678
1,326 − 647679
1,327 − 647680
1,328 − 647681
1,329 − 647682
1,330 − 647683
1,331 − 647684
1,332 − 647685
1,333 − 647686
1,334 − 647687
1,335 − 647688

FAQ

What is 1,330 − 647?

1,330 − 647 = 683

How do you check that 1,330 − 647 = 683?

Add the difference and the subtrahend: 683 + 647 = 1,330. Getting the minuend back means the difference is right.

How many times do you borrow in 1,330 − 647?

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

See Also