Addition with Regrouping: 307 + 307

Addition with Regrouping Calculator
First addend
Second addend

What is 307 + 307?

Answer

307 + 307 =
614

With regrouping: 1 carry — into the tens

307 + 307 in a column. Carries are the small circled digits above the columns.
1carry
3 0 7
+307
614

Column by column: 307 + 307

  • Ones: 7 + 7 = 14 — write 4, carry 1.
  • Tens: 0 + 0 + 1 = 1 — write 1.
  • Hundreds: 3 + 3 = 6 — write 6.

307 + 307 = 614

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FAQ

What is 307 + 307?

307 + 307 = 614

How do you check that 307 + 307 = 614?

Subtract one addend from the sum: 614 − 307 = 307. Getting the other addend back means the sum is right.

How many carries are there in 307 + 307?

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.