Subtraction with Regrouping: 163 − 65

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 163 − 65?

Answer

163 − 65 =
98

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

163 − 65 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.
015+10
1(was 1, now 0)6(was 6, now 15)3 (was 3, now 13)
−65
98

Column by column: 163 − 65

  • Ones: 3 is less than 5 — borrow 1 ten: tens 6 → 5; 13 − 5 = 8 — write 8.
  • Tens: after borrowing, 5; 5 is less than 6 — borrow 1 hundred: hundreds 1 → 0; 15 − 6 = 9 — write 9.
  • Hundreds: after borrowing, 0 — a leading zero is not written.

163 − 65 = 98

Second check: 163 − 98 = 65

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FAQ

What is 163 − 65?

163 − 65 = 98

How do you check that 163 − 65 = 98?

Add the difference and the subtrahend: 98 + 65 = 163. Getting the minuend back means the difference is right.

How many times do you borrow in 163 − 65?

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