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    Subtraction with Regrouping: 700 − 122

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 700 − 122?

    Answer

    700 − 122 =
    578

    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

    700 − 122 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.
    69+10
    7(was 7, now 6)0(was 0, now 9)0 (was 0, now 10)
    −122
    578

    Column by column: 700 − 122

    • Ones: 0 is less than 2 — borrow 1 hundred across the zero: hundreds 7 → 6, tens 0 → 9; 10 − 2 = 8 — write 8.
    • Tens: after borrowing, 9; 9 − 2 = 7 — write 7.
    • Hundreds: after borrowing, 6; 6 − 1 = 5 — write 5.

    700 − 122 = 578

    Second check: 700 − 578 = 122

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    700 − 122 = 578 - Subtraction with Regrouping. 700 − 122 = 578. 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/700--122/generated.jpgCopy

    Column subtractions from 700

    ExampleDifference
    700 − 12688
    700 − 23677
    700 − 36664
    700 − 47653
    700 − 63637
    700 − 71629
    700 − 83617
    700 − 94606
    700 − 122578
    700 − 136564
    700 − 203497
    700 − 215485
    700 − 268432
    700 − 298402
    700 − 348352
    Recalculate with different values ↑

    FAQ

    What is 700 − 122?

    700 − 122 = 578

    How do you check that 700 − 122 = 578?

    Add the difference and the subtrahend: 578 + 122 = 700. Getting the minuend back means the difference is right.

    How many times do you borrow in 700 − 122?

    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 700 − 122?

    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