Subtraction with Regrouping: 113 − 28

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 113 − 28?

Answer

113 − 28 =
85

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

113 − 28 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)3 (was 3, now 13)
−28
85

Column by column: 113 − 28

  • Ones: 3 is less than 8 — borrow 1 ten: tens 1 → 0; 13 − 8 = 5 — write 5.
  • Tens: after borrowing, 0; 0 is less than 2 — borrow 1 hundred: hundreds 1 → 0; 10 − 2 = 8 — write 8.
  • Hundreds: after borrowing, 0 — a leading zero is not written.

113 − 28 = 85

Second check: 113 − 85 = 28

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Column subtractions of 28

ExampleDifference
91 − 2863
93 − 2865
95 − 2867
97 − 2869
99 − 2871
100 − 2872
102 − 2874
104 − 2876
106 − 2878
111 − 2883
113 − 2885
117 − 2889
120 − 2892
122 − 2894
126 − 2898
133 − 28105
164 − 28136
200 − 28172
231 − 28203
267 − 28239

FAQ

What is 113 − 28?

113 − 28 = 85

How do you check that 113 − 28 = 85?

Add the difference and the subtrahend: 85 + 28 = 113. Getting the minuend back means the difference is right.

How many times do you borrow in 113 − 28?

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