Addition with Regrouping: 307 + 54

Addition with Regrouping Calculator
First addend
Second addend

What is 307 + 54?

Answer

307 + 54 =
361

With regrouping: 1 carry — into the tens

307 + 54 in a column. Carries are the small circled digits above the columns.
1carry
3 0 7
+54
361

Column by column: 307 + 54

  • Ones: 7 + 4 = 11 — write 1, carry 1.
  • Tens: 0 + 5 + 1 = 6 — write 6.
  • Hundreds: nothing to add — write 3.

307 + 54 = 361

Second check: 361 − 307 = 54

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FAQ

What is 307 + 54?

307 + 54 = 361

How do you check that 307 + 54 = 361?

Subtract one addend from the sum: 361 − 54 = 307, and 361 − 307 = 54. Getting the other addend back means the sum is right.

How many carries are there in 307 + 54?

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 54 + 307 the same as 307 + 54?

Yes. Addition is commutative, so both give 361; the column looks the same with either number on top.

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