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    Subtraction with Regrouping: 601 − 23

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 601 − 23?

    Answer

    601 − 23 =
    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

    601 − 23 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.
    59+10
    6(was 6, now 5)0(was 0, now 9)1 (was 1, now 11)
    −23
    578

    Column by column: 601 − 23

    • Ones: 1 is less than 3 — borrow 1 hundred across the zero: hundreds 6 → 5, tens 0 → 9; 11 − 3 = 8 — write 8.
    • Tens: after borrowing, 9; 9 − 2 = 7 — write 7.
    • Hundreds: after borrowing, 5; nothing to subtract — write 5.

    601 − 23 = 578

    Second check: 601 − 578 = 23

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    601 − 23 = 578 - Subtraction with Regrouping. 601 − 23 = 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/601--23/generated.jpgCopy

    Column subtractions of 23

    ExampleDifference
    226 − 23203
    262 − 23239
    291 − 23268
    300 − 23277
    330 − 23307
    371 − 23348
    399 − 23376
    425 − 23402
    476 − 23453
    508 − 23485
    559 − 23536
    601 − 23578
    670 − 23647
    700 − 23677
    800 − 23777
    900 − 23877
    1,000 − 23977
    2,000 − 231,977
    5,000 − 234,977
    10,000 − 239,977
    Recalculate with different values ↑

    FAQ

    What is 601 − 23?

    601 − 23 = 578

    How do you check that 601 − 23 = 578?

    Add the difference and the subtrahend: 578 + 23 = 601. Getting the minuend back means the difference is right.

    How many times do you borrow in 601 − 23?

    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 601 − 23?

    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