Subtraction with Regrouping: 1,000 − 136

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,000 − 136?

Answer

1,000 − 136 =
864

With regrouping across a zero: 3 borrows — there are no hundreds or tens to borrow from, so 1 thousand becomes 10 hundreds, and 1 ten goes to the ones

1,000 − 136 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.
099+10
1(was 1, now 0)0(was 0, now 9)0(was 0, now 9)0 (was 0, now 10)
−136
864

Column by column: 1,000 − 136

  • Ones: 0 is less than 6 — borrow 1 thousand across the zero: thousands 1 → 0, hundreds 0 → 9, tens 0 → 9; 10 − 6 = 4 — write 4.
  • Tens: after borrowing, 9; 9 − 3 = 6 — write 6.
  • Hundreds: after borrowing, 9; 9 − 1 = 8 — write 8.
  • Thousands: after borrowing, 0 — a leading zero is not written.

1,000 − 136 = 864

Second check: 1,000 − 864 = 136

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Column subtractions of 136

ExampleDifference
512 − 136376
525 − 136389
538 − 136402
563 − 136427
589 − 136453
604 − 136468
621 − 136485
655 − 136519
672 − 136536
700 − 136564
714 − 136578
738 − 136602
783 − 136647
800 − 136664
819 − 136683
900 − 136764
1,000 − 136864
2,000 − 1361,864
5,000 − 1364,864
10,000 − 1369,864

FAQ

What is 1,000 − 136?

1,000 − 136 = 864

How do you check that 1,000 − 136 = 864?

Add the difference and the subtrahend: 864 + 136 = 1,000. Getting the minuend back means the difference is right.

How many times do you borrow in 1,000 − 136?

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

Why does 0 become 9 when borrowing in 1,000 − 136?

The zero has nothing to lend, so it first borrows 1 from its left neighbour and becomes 10; then it lends 1 to the column on its right and keeps 9.

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