Subtraction with Regrouping: 133 − 28

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 133 − 28?

Answer

133 − 28 =
105

With regrouping: 1 borrow — from the tens

133 − 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.
2+10
1 3(was 3, now 2)3 (was 3, now 13)
−28
105

Column by column: 133 − 28

  • Ones: 3 is less than 8 — borrow 1 ten: tens 3 → 2; 13 − 8 = 5 — write 5.
  • Tens: after borrowing, 2; 2 − 2 = 0 — write 0.
  • Hundreds: nothing to subtract — write 1.

133 − 28 = 105

Second check: 133 − 105 = 28

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Recalculate with different values ↑

Column subtractions of 28

ExampleDifference
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
296 − 28268
300 − 28272
335 − 28307
376 − 28348
400 − 28372

FAQ

What is 133 − 28?

133 − 28 = 105

How do you check that 133 − 28 = 105?

Add the difference and the subtrahend: 105 + 28 = 133. Getting the minuend back means the difference is right.

How many times do you borrow in 133 − 28?

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

See Also