Addition with Regrouping: 307 + 65

Addition with Regrouping Calculator
First addend
Second addend

What is 307 + 65?

Answer

307 + 65 =
372

With regrouping: 1 carry — into the tens

307 + 65 in a column. Carries are the small circled digits above the columns.
1carry
3 0 7
+65
372

Column by column: 307 + 65

  • Ones: 7 + 5 = 12 — write 2, carry 1.
  • Tens: 0 + 6 + 1 = 7 — write 7.
  • Hundreds: nothing to add — write 3.

307 + 65 = 372

Second check: 372 − 307 = 65

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FAQ

What is 307 + 65?

307 + 65 = 372

How do you check that 307 + 65 = 372?

Subtract one addend from the sum: 372 − 65 = 307, and 372 − 307 = 65. Getting the other addend back means the sum is right.

How many carries are there in 307 + 65?

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 65 + 307 the same as 307 + 65?

Yes. Addition is commutative, so both give 372; the column looks the same with either number on top.