Subtraction with Regrouping: 124,690 − 1,234

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 124,690 − 1,234?

Answer

124,690 − 1,234 =
123,456

With regrouping: 1 borrow — from the tens

124,690 − 1,234 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.
8+10
1 2 4 6 9(was 9, now 8)0 (was 0, now 10)
−1234
123456

Column by column: 124,690 − 1,234

  • Ones: 0 is less than 4 — borrow 1 ten: tens 9 → 8; 10 − 4 = 6 — write 6.
  • Tens: after borrowing, 8; 8 − 3 = 5 — write 5.
  • Hundreds: 6 − 2 = 4 — write 4.
  • Thousands: 4 − 1 = 3 — write 3.
  • Ten thousands: nothing to subtract — write 2.
  • Hundred thousands: nothing to subtract — write 1.

124,690 − 1,234 = 123,456

Second check: 124,690 − 123,456 = 1,234

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Column subtractions of 1,234

ExampleDifference
2,468 − 1,2341,234
3,702 − 1,2342,468
4,813 − 1,2343,579
6,039 − 1,2344,805
6,330 − 1,2345,096
7,947 − 1,2346,713
8,584 − 1,2347,350
9,276 − 1,2348,042
13,579 − 1,23412,345
24,690 − 1,23423,456
46,323 − 1,23445,089
71,546 − 1,23470,312
124,690 − 1,234123,456
406,301 − 1,234405,067
988,888 − 1,234987,654

FAQ

What is 124,690 − 1,234?

124,690 − 1,234 = 123,456

How do you check that 124,690 − 1,234 = 123,456?

Add the difference and the subtrahend: 123,456 + 1,234 = 124,690. Getting the minuend back means the difference is right.

How many times do you borrow in 124,690 − 1,234?

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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