Subtraction with Regrouping: 47 − 19

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 47 − 19?

Answer

47 − 19 =
28

With regrouping: 1 borrow — from the tens

47 − 19 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.
3+10
4(was 4, now 3)7 (was 7, now 17)
−19
28

Column by column: 47 − 19

  • Ones: 7 is less than 9 — borrow 1 ten: tens 4 → 3; 17 − 9 = 8 — write 8.
  • Tens: after borrowing, 3; 3 − 1 = 2 — write 2.

47 − 19 = 28

Second check: 47 − 28 = 19

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FAQ

What is 47 − 19?

47 − 19 = 28

How do you check that 47 − 19 = 28?

Add the difference and the subtrahend: 28 + 19 = 47. Getting the minuend back means the difference is right.

How many times do you borrow in 47 − 19?

1 borrow: each time the top digit was smaller than the one below it, 1 was borrowed from the column on the left.