Subtraction with Regrouping: 176 − 78

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 176 − 78?

Answer

176 − 78 =
98

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

176 − 78 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.
016+10
1(was 1, now 0)7(was 7, now 16)6 (was 6, now 16)
−78
98

Column by column: 176 − 78

  • Ones: 6 is less than 8 — borrow 1 ten: tens 7 → 6; 16 − 8 = 8 — write 8.
  • Tens: after borrowing, 6; 6 is less than 7 — borrow 1 hundred: hundreds 1 → 0; 16 − 7 = 9 — write 9.
  • Hundreds: after borrowing, 0 — a leading zero is not written.

176 − 78 = 98

Second check: 176 − 98 = 78

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See Also

FAQ

What is 176 − 78?

176 − 78 = 98

How do you check that 176 − 78 = 98?

Add the difference and the subtrahend: 98 + 78 = 176. Getting the minuend back means the difference is right.

How many times do you borrow in 176 − 78?

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