Subtraction with Regrouping: 1,087 − 485

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,087 − 485?

Answer

1,087 − 485 =
602

With regrouping: 1 borrow — from the thousands

1,087 − 485 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+10
1(was 1, now 0)0 (was 0, now 10)8 7
−485
602

Column by column: 1,087 − 485

  • Ones: 7 − 5 = 2 — write 2.
  • Tens: 8 − 8 = 0 — write 0.
  • Hundreds: 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.

1,087 − 485 = 602

Second check: 1,087 − 602 = 485

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Column subtractions of 485

ExampleDifference
1,082 − 485597
1,083 − 485598
1,084 − 485599
1,085 − 485600
1,086 − 485601
1,087 − 485602
1,088 − 485603
1,089 − 485604
1,090 − 485605
1,091 − 485606
1,092 − 485607

FAQ

What is 1,087 − 485?

1,087 − 485 = 602

How do you check that 1,087 − 485 = 602?

Add the difference and the subtrahend: 602 + 485 = 1,087. Getting the minuend back means the difference is right.

How many times do you borrow in 1,087 − 485?

1 borrow: 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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