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    Subtraction with Regrouping: 400 − 144

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 400 − 144?

    Answer

    400 − 144 =
    256

    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

    400 − 144 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)0 (was 0, now 10)
    −144
    256

    Column by column: 400 − 144

    • Ones: 0 is less than 4 — borrow 1 hundred across the zero: hundreds 4 → 3, tens 0 → 9; 10 − 4 = 6 — write 6.
    • Tens: after borrowing, 9; 9 − 4 = 5 — write 5.
    • Hundreds: after borrowing, 3; 3 − 1 = 2 — write 2.

    400 − 144 = 256

    Second check: 400 − 256 = 144

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    <a href="https://calculat.io/en/number/long-subtraction/400--144">400 − 144 = 256 - Subtraction with Regrouping - Calculatio</a>Copy
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    400 − 144 = 256 - Subtraction with Regrouping. 400 − 144 = 256. 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/400--144/generated.jpgCopy

    Column subtractions from 400

    ExampleDifference
    400 − 12388
    400 − 19381
    400 − 28372
    400 − 39361
    400 − 47353
    400 − 52348
    400 − 58342
    400 − 67333
    400 − 74326
    400 − 83317
    400 − 92308
    400 − 93307
    400 − 105295
    400 − 144256
    400 − 149251
    400 − 197203
    Recalculate with different values ↑

    FAQ

    What is 400 − 144?

    400 − 144 = 256

    How do you check that 400 − 144 = 256?

    Add the difference and the subtrahend: 256 + 144 = 400. Getting the minuend back means the difference is right.

    How many times do you borrow in 400 − 144?

    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 400 − 144?

    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