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    Subtraction with Regrouping: 231 − 28

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 231 − 28?

    Answer

    231 − 28 =
    203

    With regrouping: 1 borrow — from the tens

    231 − 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
    2 3(was 3, now 2)1 (was 1, now 11)
    −28
    203

    Column by column: 231 − 28

    • Ones: 1 is less than 8 — borrow 1 ten: tens 3 → 2; 11 − 8 = 3 — write 3.
    • Tens: after borrowing, 2; 2 − 2 = 0 — write 0.
    • Hundreds: nothing to subtract — write 2.

    231 − 28 = 203

    Second check: 231 − 203 = 28

    Similar examples to practise

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    231 − 28 = 203 - Subtraction with Regrouping. 231 − 28 = 203. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/231--28/generated.jpgCopy

    Column subtractions of 28

    ExampleDifference
    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
    404 − 28376
    430 − 28402
    481 − 28453
    Recalculate with different values ↑

    FAQ

    What is 231 − 28?

    231 − 28 = 203

    How do you check that 231 − 28 = 203?

    Add the difference and the subtrahend: 203 + 28 = 231. Getting the minuend back means the difference is right.

    How many times do you borrow in 231 − 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