Subtraction with Regrouping: 12,847 − 4,805

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 12,847 − 4,805?

Answer

12,847 − 4,805 =
8,042

With regrouping: 1 borrow — from the ten thousands

12,847 − 4,805 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)2 (was 2, now 12)8 4 7
−4805
8042

Column by column: 12,847 − 4,805

  • Ones: 7 − 5 = 2 — write 2.
  • Tens: 4 − 0 = 4 — write 4.
  • Hundreds: 8 − 8 = 0 — write 0.
  • Thousands: 2 is less than 4 — borrow 1 ten thousand: ten thousands 1 → 0; 12 − 4 = 8 — write 8.
  • Ten thousands: after borrowing, 0 — a leading zero is not written.

12,847 − 4,805 = 8,042

Second check: 12,847 − 8,042 = 4,805

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Column subtractions of 4,805

ExampleDifference
12,842 − 4,8058,037
12,843 − 4,8058,038
12,844 − 4,8058,039
12,845 − 4,8058,040
12,846 − 4,8058,041
12,847 − 4,8058,042
12,848 − 4,8058,043
12,849 − 4,8058,044
12,850 − 4,8058,045
12,851 − 4,8058,046
12,852 − 4,8058,047

FAQ

What is 12,847 − 4,805?

12,847 − 4,805 = 8,042

How do you check that 12,847 − 4,805 = 8,042?

Add the difference and the subtrahend: 8,042 + 4,805 = 12,847. Getting the minuend back means the difference is right.

How many times do you borrow in 12,847 − 4,805?

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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