Subtraction with Regrouping: 1,074 − 427

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,074 − 427?

Answer

1,074 − 427 =
647

With regrouping: 2 borrows — from the tens and the thousands

1,074 − 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+106+10
1(was 1, now 0)0 (was 0, now 10)7(was 7, now 6)4 (was 4, now 14)
−427
647

Column by column: 1,074 − 427

  • Ones: 4 is less than 7 — borrow 1 ten: tens 7 → 6; 14 − 7 = 7 — write 7.
  • Tens: after borrowing, 6; 6 − 2 = 4 — write 4.
  • 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.

1,074 − 427 = 647

Second check: 1,074 − 647 = 427

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Column subtractions of 427

ExampleDifference
1,069 − 427642
1,070 − 427643
1,071 − 427644
1,072 − 427645
1,073 − 427646
1,074 − 427647
1,075 − 427648
1,076 − 427649
1,077 − 427650
1,078 − 427651
1,079 − 427652

FAQ

What is 1,074 − 427?

1,074 − 427 = 647

How do you check that 1,074 − 427 = 647?

Add the difference and the subtrahend: 647 + 427 = 1,074. Getting the minuend back means the difference is right.

How many times do you borrow in 1,074 − 427?

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

See Also