Addition with Regrouping: 325 + 187

Addition with Regrouping Calculator
First addend
Second addend

What is 325 + 187?

Answer

325 + 187 =
512

With regrouping: 2 carries — into the tens and the hundreds

325 + 187 in a column. Carries are the small circled digits above the columns.
1carry1carry
3 2 5
+187
512

Column by column: 325 + 187

  • Ones: 5 + 7 = 12 — write 2, carry 1.
  • Tens: 2 + 8 + 1 = 11 — write 1, carry 1.
  • Hundreds: 3 + 1 + 1 = 5 — write 5.

325 + 187 = 512

Second check: 512 − 325 = 187

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FAQ

What is 325 + 187?

325 + 187 = 512

How do you check that 325 + 187 = 512?

Subtract one addend from the sum: 512 − 187 = 325, and 512 − 325 = 187. Getting the other addend back means the sum is right.

How many carries are there in 325 + 187?

2 carries: 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 187 + 325 the same as 325 + 187?

Yes. Addition is commutative, so both give 512; the column looks the same with either number on top.