Subtraction with Regrouping: 115 − 17

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 115 − 17?

Answer

115 − 17 =
98

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

115 − 17 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.
010+10
1(was 1, now 0)1(was 1, now 10)5 (was 5, now 15)
−17
98

Column by column: 115 − 17

  • Ones: 5 is less than 7 — borrow 1 ten: tens 1 → 0; 15 − 7 = 8 — write 8.
  • Tens: after borrowing, 0; 0 is less than 1 — borrow 1 hundred: hundreds 1 → 0; 10 − 1 = 9 — write 9.
  • Hundreds: after borrowing, 0 — a leading zero is not written.

115 − 17 = 98

Second check: 115 − 98 = 17

Similar examples to practise

Related Calculations

See Also

Recalculate with different values ↑

Column subtractions of 17

ExampleDifference
86 − 1769
88 − 1771
91 − 1774
93 − 1776
95 − 1778
100 − 1783
102 − 1785
106 − 1789
109 − 1792
111 − 1794
115 − 1798
122 − 17105
153 − 17136
189 − 17172
200 − 17183
220 − 17203
256 − 17239
285 − 17268
300 − 17283
324 − 17307

FAQ

What is 115 − 17?

115 − 17 = 98

How do you check that 115 − 17 = 98?

Add the difference and the subtrahend: 98 + 17 = 115. Getting the minuend back means the difference is right.

How many times do you borrow in 115 − 17?

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

See Also