Subtraction with Regrouping: 7,158 − 3,579

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 7,158 − 3,579?

Answer

7,158 − 3,579 =
3,579

With regrouping: 3 borrows — from the tens, the hundreds and the thousands

7,158 − 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.
61014+10
7(was 7, now 6)1(was 1, now 10)5(was 5, now 14)8 (was 8, now 18)
−3579
3579

Column by column: 7,158 − 3,579

  • Ones: 8 is less than 9 — borrow 1 ten: tens 5 → 4; 18 − 9 = 9 — write 9.
  • Tens: after borrowing, 4; 4 is less than 7 — borrow 1 hundred: hundreds 1 → 0; 14 − 7 = 7 — write 7.
  • Hundreds: after borrowing, 0; 0 is less than 5 — borrow 1 thousand: thousands 7 → 6; 10 − 5 = 5 — write 5.
  • Thousands: after borrowing, 6; 6 − 3 = 3 — write 3.

7,158 − 3,579 = 3,579

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Column subtractions of 3,579

ExampleDifference
7,153 − 3,5793,574
7,154 − 3,5793,575
7,155 − 3,5793,576
7,156 − 3,5793,577
7,157 − 3,5793,578
7,158 − 3,5793,579
7,159 − 3,5793,580
7,160 − 3,5793,581
7,161 − 3,5793,582
7,162 − 3,5793,583
7,163 − 3,5793,584

FAQ

What is 7,158 − 3,579?

7,158 − 3,579 = 3,579

How do you check that 7,158 − 3,579 = 3,579?

Add the difference and the subtrahend: 3,579 + 3,579 = 7,158. Getting the minuend back means the difference is right.

How many times do you borrow in 7,158 − 3,579?

3 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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