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    Subtraction with Regrouping: 405 − 98

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 405 − 98?

    Answer

    405 − 98 =
    307

    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

    405 − 98 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.
    39+10
    4(was 4, now 3)0(was 0, now 9)5 (was 5, now 15)
    −98
    307

    Column by column: 405 − 98

    • Ones: 5 is less than 8 — borrow 1 hundred across the zero: hundreds 4 → 3, tens 0 → 9; 15 − 8 = 7 — write 7.
    • Tens: after borrowing, 9; 9 − 9 = 0 — write 0.
    • Hundreds: after borrowing, 3; nothing to subtract — write 3.

    405 − 98 = 307

    Second check: 405 − 307 = 98

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    405 − 98 = 307 - Subtraction with Regrouping. 405 − 98 = 307. 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/405--98/generated.jpgCopy

    Column subtractions of 98

    ExampleDifference
    196 − 9898
    203 − 98105
    234 − 98136
    270 − 98172
    301 − 98203
    337 − 98239
    366 − 98268
    405 − 98307
    446 − 98348
    474 − 98376
    500 − 98402
    551 − 98453
    583 − 98485
    634 − 98536
    676 − 98578
    745 − 98647
    Recalculate with different values ↑

    FAQ

    What is 405 − 98?

    405 − 98 = 307

    How do you check that 405 − 98 = 307?

    Add the difference and the subtrahend: 307 + 98 = 405. Getting the minuend back means the difference is right.

    How many times do you borrow in 405 − 98?

    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 405 − 98?

    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