Subtraction with Regrouping: 8,384 − 3,579

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 8,384 − 3,579?

Answer

8,384 − 3,579 =
4,805

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

8,384 − 3,579 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.
7+107+10
8(was 8, now 7)3 (was 3, now 13)8(was 8, now 7)4 (was 4, now 14)
−3579
4805

Column by column: 8,384 − 3,579

  • Ones: 4 is less than 9 — borrow 1 ten: tens 8 → 7; 14 − 9 = 5 — write 5.
  • Tens: after borrowing, 7; 7 − 7 = 0 — write 0.
  • Hundreds: 3 is less than 5 — borrow 1 thousand: thousands 8 → 7; 13 − 5 = 8 — write 8.
  • Thousands: after borrowing, 7; 7 − 3 = 4 — write 4.

8,384 − 3,579 = 4,805

Second check: 8,384 − 4,805 = 3,579

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Column subtractions of 3,579

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8,379 − 3,5794,800
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8,383 − 3,5794,804
8,384 − 3,5794,805
8,385 − 3,5794,806
8,386 − 3,5794,807
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8,388 − 3,5794,809
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FAQ

What is 8,384 − 3,579?

8,384 − 3,579 = 4,805

How do you check that 8,384 − 3,579 = 4,805?

Add the difference and the subtrahend: 4,805 + 3,579 = 8,384. Getting the minuend back means the difference is right.

How many times do you borrow in 8,384 − 3,579?

2 borrows: 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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