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    Addition with Regrouping: 307 + 15

    Addition with Regrouping Calculator
    First addend
    Second addend

    What is 307 + 15?

    Answer

    307 + 15 =
    322

    With regrouping: 1 carry — into the tens

    307 + 15 in a column. Carries are the small circled digits above the columns.
    1carry
    3 0 7
    +15
    322

    Column by column: 307 + 15

    • Ones: 7 + 5 = 12 — write 2, carry 1.
    • Tens: 0 + 1 + 1 = 2 — write 2.
    • Hundreds: nothing to add — write 3.

    307 + 15 = 322

    Second check: 322 − 307 = 15

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    307 + 15 = 322 - Addition with Regrouping. 307 + 15 = 322. Addition with regrouping step by step: 1 carry, every digit of the sum and a subtraction check.
    https://calculat.io/en/number/long-addition/307--15/generated.jpgCopy

    Column additions with 15

    ExampleSum
    85 + 15100
    89 + 15104
    92 + 15107
    94 + 15109
    98 + 15113
    105 + 15120
    136 + 15151
    172 + 15187
    203 + 15218
    239 + 15254
    268 + 15283
    307 + 15322
    348 + 15363
    376 + 15391
    402 + 15417
    453 + 15468
    485 + 15500
    536 + 15551
    578 + 15593
    647 + 15662
    Recalculate with different values ↑

    FAQ

    What is 307 + 15?

    307 + 15 = 322

    How do you check that 307 + 15 = 322?

    Subtract one addend from the sum: 322 − 15 = 307, and 322 − 307 = 15. Getting the other addend back means the sum is right.

    How many carries are there in 307 + 15?

    1 carry: every time a column added up to 10 or more, its ones digit was written and 1 was carried to the next column on the left.

    Is 15 + 307 the same as 307 + 15?

    Yes. Addition is commutative, so both give 322; the column looks the same with either number on top.

    See Also