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    Subtraction with Regrouping: 921 − 402

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 921 − 402?

    Answer

    921 − 402 =
    519

    With regrouping: 1 borrow — from the tens

    921 − 402 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.
    1+10
    9 2(was 2, now 1)1 (was 1, now 11)
    −402
    519

    Column by column: 921 − 402

    • Ones: 1 is less than 2 — borrow 1 ten: tens 2 → 1; 11 − 2 = 9 — write 9.
    • Tens: after borrowing, 1; 1 − 0 = 1 — write 1.
    • Hundreds: 9 − 4 = 5 — write 5.

    921 − 402 = 519

    Second check: 921 − 519 = 402

    Similar examples to practise

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    921 − 402 = 519 - Subtraction with Regrouping. 921 − 402 = 519. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/921--402/generated.jpgCopy

    Column subtractions of 402

    ExampleDifference
    804 − 402402
    829 − 402427
    855 − 402453
    870 − 402468
    887 − 402485
    900 − 402498
    921 − 402519
    938 − 402536
    966 − 402564
    980 − 402578
    1,000 − 402598
    1,004 − 402602
    1,049 − 402647
    1,085 − 402683
    2,000 − 4021,598
    5,000 − 4024,598
    10,000 − 4029,598
    Recalculate with different values ↑

    FAQ

    What is 921 − 402?

    921 − 402 = 519

    How do you check that 921 − 402 = 519?

    Add the difference and the subtrahend: 519 + 402 = 921. Getting the minuend back means the difference is right.

    How many times do you borrow in 921 − 402?

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

    See Also