Subtraction with Regrouping: 1,029 − 427

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,029 − 427?

Answer

1,029 − 427 =
602

With regrouping: 1 borrow — from the thousands

1,029 − 427 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)2 9
−427
602

Column by column: 1,029 − 427

  • Ones: 9 − 7 = 2 — write 2.
  • Tens: 2 − 2 = 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.

1,029 − 427 = 602

Second check: 1,029 − 602 = 427

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Recalculate with different values ↑

Column subtractions of 427

ExampleDifference
1,024 − 427597
1,025 − 427598
1,026 − 427599
1,027 − 427600
1,028 − 427601
1,029 − 427602
1,030 − 427603
1,031 − 427604
1,032 − 427605
1,033 − 427606
1,034 − 427607

FAQ

What is 1,029 − 427?

1,029 − 427 = 602

How do you check that 1,029 − 427 = 602?

Add the difference and the subtrahend: 602 + 427 = 1,029. Getting the minuend back means the difference is right.

How many times do you borrow in 1,029 − 427?

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

See Also