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    Subtraction with Regrouping: 9,901 − 4,805

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 9,901 − 4,805?

    Answer

    9,901 − 4,805 =
    5,096

    With regrouping across a zero: 2 borrows — there are no tens to borrow from, so 1 hundred becomes 10 tens, and 1 ten goes to the ones

    9,901 − 4,805 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.
    89+10
    9 9(was 9, now 8)0(was 0, now 9)1 (was 1, now 11)
    −4805
    5096

    Column by column: 9,901 − 4,805

    • Ones: 1 is less than 5 — borrow 1 hundred across the zero: hundreds 9 → 8, tens 0 → 9; 11 − 5 = 6 — write 6.
    • Tens: after borrowing, 9; 9 − 0 = 9 — write 9.
    • Hundreds: after borrowing, 8; 8 − 8 = 0 — write 0.
    • Thousands: 9 − 4 = 5 — write 5.

    9,901 − 4,805 = 5,096

    Second check: 9,901 − 5,096 = 4,805

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    https://calculat.io/en/number/long-subtraction/9901--4805Copy
    <a href="https://calculat.io/en/number/long-subtraction/9901--4805">9,901 − 4,805 = 5,096 - Subtraction with Regrouping</a>Copy
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    9,901 − 4,805 = 5,096 - Subtraction with Regrouping. 9,901 − 4,805 = 5,096. Subtraction with regrouping step by step: 2 borrows across a zero, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/9901--4805/generated.jpgCopy

    Column subtractions of 4,805

    ExampleDifference
    9,896 − 4,8055,091
    9,897 − 4,8055,092
    9,898 − 4,8055,093
    9,899 − 4,8055,094
    9,900 − 4,8055,095
    9,901 − 4,8055,096
    9,902 − 4,8055,097
    9,903 − 4,8055,098
    9,904 − 4,8055,099
    9,905 − 4,8055,100
    9,906 − 4,8055,101
    Recalculate with different values ↑

    FAQ

    What is 9,901 − 4,805?

    9,901 − 4,805 = 5,096

    How do you check that 9,901 − 4,805 = 5,096?

    Add the difference and the subtrahend: 5,096 + 4,805 = 9,901. Getting the minuend back means the difference is right.

    How many times do you borrow in 9,901 − 4,805?

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

    Why does 0 become 9 when borrowing in 9,901 − 4,805?

    The zero has nothing to lend, so it first borrows 1 from its left neighbour and becomes 10; then it lends 1 to the column on its right and keeps 9.

    See Also