Addition with Regrouping: 307 + 34

Addition with Regrouping Calculator
First addend
Second addend

What is 307 + 34?

Answer

307 + 34 =
341

With regrouping: 1 carry — into the tens

307 + 34 in a column. Carries are the small circled digits above the columns.
1carry
3 0 7
+34
341

Column by column: 307 + 34

  • Ones: 7 + 4 = 11 — write 1, carry 1.
  • Tens: 0 + 3 + 1 = 4 — write 4.
  • Hundreds: nothing to add — write 3.

307 + 34 = 341

Second check: 341 − 307 = 34

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FAQ

What is 307 + 34?

307 + 34 = 341

How do you check that 307 + 34 = 341?

Subtract one addend from the sum: 341 − 34 = 307, and 341 − 307 = 34. Getting the other addend back means the sum is right.

How many carries are there in 307 + 34?

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 34 + 307 the same as 307 + 34?

Yes. Addition is commutative, so both give 341; the column looks the same with either number on top.