Addition with Regrouping: 325 + 256

Addition with Regrouping Calculator
First addend
Second addend

What is 325 + 256?

Answer

325 + 256 =
581

With regrouping: 1 carry — into the tens

325 + 256 in a column. Carries are the small circled digits above the columns.
1carry
3 2 5
+256
581

Column by column: 325 + 256

  • Ones: 5 + 6 = 11 — write 1, carry 1.
  • Tens: 2 + 5 + 1 = 8 — write 8.
  • Hundreds: 3 + 2 = 5 — write 5.

325 + 256 = 581

Second check: 581 − 325 = 256

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FAQ

What is 325 + 256?

325 + 256 = 581

How do you check that 325 + 256 = 581?

Subtract one addend from the sum: 581 − 256 = 325, and 581 − 325 = 256. Getting the other addend back means the sum is right.

How many carries are there in 325 + 256?

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 256 + 325 the same as 325 + 256?

Yes. Addition is commutative, so both give 581; the column looks the same with either number on top.