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    Subtraction with Regrouping: 331 − 128

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 331 − 128?

    Answer

    331 − 128 =
    203

    With regrouping: 1 borrow — from the tens

    331 − 128 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
    3 3(was 3, now 2)1 (was 1, now 11)
    −128
    203

    Column by column: 331 − 128

    • 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: 3 − 1 = 2 — write 2.

    331 − 128 = 203

    Second check: 331 − 203 = 128

    Similar examples to practise

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    331 − 128 = 203 - Subtraction with Regrouping. 331 − 128 = 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/331--128/generated.jpgCopy

    Column subtractions of 128

    ExampleDifference
    256 − 128128
    264 − 128136
    277 − 128149
    300 − 128172
    315 − 128187
    331 − 128203
    342 − 128214
    367 − 128239
    384 − 128256
    396 − 128268
    419 − 128291
    435 − 128307
    453 − 128325
    476 − 128348
    482 − 128354
    504 − 128376
    517 − 128389
    530 − 128402
    555 − 128427
    581 − 128453
    Recalculate with different values ↑

    FAQ

    What is 331 − 128?

    331 − 128 = 203

    How do you check that 331 − 128 = 203?

    Add the difference and the subtrahend: 203 + 128 = 331. Getting the minuend back means the difference is right.

    How many times do you borrow in 331 − 128?

    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