Addition with Regrouping: 291 + 239

Addition with Regrouping Calculator
First addend
Second addend

What is 291 + 239?

Answer

291 + 239 =
530

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

291 + 239 in a column. Carries are the small circled digits above the columns.
1carry1carry
2 9 1
+239
530

Column by column: 291 + 239

  • Ones: 1 + 9 = 10 — write 0, carry 1.
  • Tens: 9 + 3 + 1 = 13 — write 3, carry 1.
  • Hundreds: 2 + 2 + 1 = 5 — write 5.

291 + 239 = 530

Second check: 530 − 291 = 239

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FAQ

What is 291 + 239?

291 + 239 = 530

How do you check that 291 + 239 = 530?

Subtract one addend from the sum: 530 − 239 = 291, and 530 − 291 = 239. Getting the other addend back means the sum is right.

How many carries are there in 291 + 239?

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 239 + 291 the same as 291 + 239?

Yes. Addition is commutative, so both give 530; the column looks the same with either number on top.

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