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    Subtraction with Regrouping: 421 − 19

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 421 − 19?

    Answer

    421 − 19 =
    402

    With regrouping: 1 borrow — from the tens

    421 − 19 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
    4 2(was 2, now 1)1 (was 1, now 11)
    −19
    402

    Column by column: 421 − 19

    • Ones: 1 is less than 9 — borrow 1 ten: tens 2 → 1; 11 − 9 = 2 — write 2.
    • Tens: after borrowing, 1; 1 − 1 = 0 — write 0.
    • Hundreds: nothing to subtract — write 4.

    421 − 19 = 402

    Second check: 421 − 402 = 19

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    421 − 19 = 402 - Subtraction with Regrouping. 421 − 19 = 402. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/421--19/generated.jpgCopy

    Column subtractions of 19

    ExampleDifference
    113 − 1994
    117 − 1998
    124 − 19105
    155 − 19136
    191 − 19172
    222 − 19203
    258 − 19239
    287 − 19268
    326 − 19307
    367 − 19348
    395 − 19376
    400 − 19381
    421 − 19402
    472 − 19453
    500 − 19481
    504 − 19485
    555 − 19536
    597 − 19578
    600 − 19581
    666 − 19647
    Recalculate with different values ↑

    FAQ

    What is 421 − 19?

    421 − 19 = 402

    How do you check that 421 − 19 = 402?

    Add the difference and the subtrahend: 402 + 19 = 421. Getting the minuend back means the difference is right.

    How many times do you borrow in 421 − 19?

    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