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    Subtraction with Regrouping: 128 − 45

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 128 − 45?

    Answer

    128 − 45 =
    83

    With regrouping: 1 borrow — from the hundreds

    128 − 45 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.
    0+10
    1(was 1, now 0)2 (was 2, now 12)8
    −45
    83

    Column by column: 128 − 45

    • Ones: 8 − 5 = 3 — write 3.
    • Tens: 2 is less than 4 — borrow 1 hundred: hundreds 1 → 0; 12 − 4 = 8 — write 8.
    • Hundreds: after borrowing, 0 — a leading zero is not written.

    128 − 45 = 83

    Second check: 128 − 83 = 45

    Similar examples to practise

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    128 − 45 = 83 - Subtraction with Regrouping. 128 − 45 = 83. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/128--45/generated.jpgCopy

    Column subtractions of 45

    ExampleDifference
    99 − 4554
    103 − 4558
    108 − 4563
    110 − 4565
    112 − 4567
    114 − 4569
    116 − 4571
    119 − 4574
    121 − 4576
    123 − 4578
    128 − 4583
    130 − 4585
    134 − 4589
    137 − 4592
    139 − 4594
    143 − 4598
    150 − 45105
    181 − 45136
    217 − 45172
    248 − 45203
    Recalculate with different values ↑

    FAQ

    What is 128 − 45?

    128 − 45 = 83

    How do you check that 128 − 45 = 83?

    Add the difference and the subtrahend: 83 + 45 = 128. Getting the minuend back means the difference is right.

    How many times do you borrow in 128 − 45?

    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