Subtraction with Regrouping: 158 − 69

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 158 − 69?

Answer

158 − 69 =
89

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

158 − 69 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.
014+10
1(was 1, now 0)5(was 5, now 14)8 (was 8, now 18)
−69
89

Column by column: 158 − 69

  • 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 6 — borrow 1 hundred: hundreds 1 → 0; 14 − 6 = 8 — write 8.
  • Hundreds: after borrowing, 0 — a leading zero is not written.

158 − 69 = 89

Second check: 158 − 89 = 69

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See Also

FAQ

What is 158 − 69?

158 − 69 = 89

How do you check that 158 − 69 = 89?

Add the difference and the subtrahend: 89 + 69 = 158. Getting the minuend back means the difference is right.

How many times do you borrow in 158 − 69?

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