Subtraction with Regrouping: 1,085 − 402

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,085 − 402?

Answer

1,085 − 402 =
683

With regrouping: 1 borrow — from the thousands

1,085 − 402 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 5
−402
683

Column by column: 1,085 − 402

  • Ones: 5 − 2 = 3 — write 3.
  • Tens: 8 − 0 = 8 — write 8.
  • 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.

1,085 − 402 = 683

Second check: 1,085 − 683 = 402

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Recalculate with different values ↑

Column subtractions of 402

ExampleDifference
804 − 402402
829 − 402427
855 − 402453
870 − 402468
887 − 402485
900 − 402498
921 − 402519
938 − 402536
966 − 402564
980 − 402578
1,000 − 402598
1,004 − 402602
1,049 − 402647
1,085 − 402683
2,000 − 4021,598
5,000 − 4024,598
10,000 − 4029,598

FAQ

What is 1,085 − 402?

1,085 − 402 = 683

How do you check that 1,085 − 402 = 683?

Add the difference and the subtrahend: 683 + 402 = 1,085. Getting the minuend back means the difference is right.

How many times do you borrow in 1,085 − 402?

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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