Subtraction with Regrouping: 15,924 − 3,579

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 15,924 − 3,579?

Answer

15,924 − 3,579 =
12,345

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

15,924 − 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.
811+10
1 5 9(was 9, now 8)2(was 2, now 11)4 (was 4, now 14)
−3579
12345

Column by column: 15,924 − 3,579

  • Ones: 4 is less than 9 — borrow 1 ten: tens 2 → 1; 14 − 9 = 5 — write 5.
  • Tens: after borrowing, 1; 1 is less than 7 — borrow 1 hundred: hundreds 9 → 8; 11 − 7 = 4 — write 4.
  • Hundreds: after borrowing, 8; 8 − 5 = 3 — write 3.
  • Thousands: 5 − 3 = 2 — write 2.
  • Ten thousands: nothing to subtract — write 1.

15,924 − 3,579 = 12,345

Second check: 15,924 − 12,345 = 3,579

Similar examples to practise

See Also

Column subtractions of 3,579

ExampleDifference
15,919 − 3,57912,340
15,920 − 3,57912,341
15,921 − 3,57912,342
15,922 − 3,57912,343
15,923 − 3,57912,344
15,924 − 3,57912,345
15,925 − 3,57912,346
15,926 − 3,57912,347
15,927 − 3,57912,348
15,928 − 3,57912,349
15,929 − 3,57912,350

FAQ

What is 15,924 − 3,579?

15,924 − 3,579 = 12,345

How do you check that 15,924 − 3,579 = 12,345?

Add the difference and the subtrahend: 12,345 + 3,579 = 15,924. Getting the minuend back means the difference is right.

How many times do you borrow in 15,924 − 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.