Subtraction with Regrouping: 1,115 − 468

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,115 − 468?

Answer

1,115 − 468 =
647

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

1,115 − 468 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.
01010+10
1(was 1, now 0)1(was 1, now 10)1(was 1, now 10)5 (was 5, now 15)
−468
647

Column by column: 1,115 − 468

  • Ones: 5 is less than 8 — borrow 1 ten: tens 1 → 0; 15 − 8 = 7 — write 7.
  • Tens: after borrowing, 0; 0 is less than 6 — borrow 1 hundred: hundreds 1 → 0; 10 − 6 = 4 — write 4.
  • Hundreds: after borrowing, 0; 0 is less than 4 — borrow 1 thousand: thousands 1 → 0; 10 − 4 = 6 — write 6.
  • Thousands: after borrowing, 0 — a leading zero is not written.

1,115 − 468 = 647

Second check: 1,115 − 647 = 468

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Column subtractions of 468

ExampleDifference
1,110 − 468642
1,111 − 468643
1,112 − 468644
1,113 − 468645
1,114 − 468646
1,115 − 468647
1,116 − 468648
1,117 − 468649
1,118 − 468650
1,119 − 468651
1,120 − 468652

FAQ

What is 1,115 − 468?

1,115 − 468 = 647

How do you check that 1,115 − 468 = 647?

Add the difference and the subtrahend: 647 + 468 = 1,115. Getting the minuend back means the difference is right.

How many times do you borrow in 1,115 − 468?

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

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