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    Subtraction with Regrouping: 170 − 34

    Subtraction with Regrouping Calculator
    Minuend
    Subtrahend

    What is 170 − 34?

    Answer

    170 − 34 =
    136

    With regrouping: 1 borrow — from the tens

    170 − 34 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.
    6+10
    1 7(was 7, now 6)0 (was 0, now 10)
    −34
    136

    Column by column: 170 − 34

    • Ones: 0 is less than 4 — borrow 1 ten: tens 7 → 6; 10 − 4 = 6 — write 6.
    • Tens: after borrowing, 6; 6 − 3 = 3 — write 3.
    • Hundreds: nothing to subtract — write 1.

    170 − 34 = 136

    Second check: 170 − 136 = 34

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    170 − 34 = 136 - Subtraction with Regrouping. 170 − 34 = 136. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.
    https://calculat.io/en/number/long-subtraction/170--34/generated.jpgCopy

    Column subtractions of 34

    ExampleDifference
    108 − 3474
    110 − 3476
    112 − 3478
    117 − 3483
    119 − 3485
    123 − 3489
    126 − 3492
    128 − 3494
    132 − 3498
    139 − 34105
    170 − 34136
    206 − 34172
    237 − 34203
    273 − 34239
    302 − 34268
    341 − 34307
    382 − 34348
    410 − 34376
    436 − 34402
    487 − 34453
    Recalculate with different values ↑

    FAQ

    What is 170 − 34?

    170 − 34 = 136

    How do you check that 170 − 34 = 136?

    Add the difference and the subtrahend: 136 + 34 = 170. Getting the minuend back means the difference is right.

    How many times do you borrow in 170 − 34?

    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