Addition with Regrouping: 268 + 83

Addition with Regrouping Calculator
First addend
Second addend

What is 268 + 83?

Answer

268 + 83 =
351

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

268 + 83 in a column. Carries are the small circled digits above the columns.
1carry1carry
2 6 8
+83
351

Column by column: 268 + 83

  • Ones: 8 + 3 = 11 — write 1, carry 1.
  • Tens: 6 + 8 + 1 = 15 — write 5, carry 1.
  • Hundreds: 2 + 1 = 3 — write 3.

268 + 83 = 351

Second check: 351 − 268 = 83

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FAQ

What is 268 + 83?

268 + 83 = 351

How do you check that 268 + 83 = 351?

Subtract one addend from the sum: 351 − 83 = 268, and 351 − 268 = 83. Getting the other addend back means the sum is right.

How many carries are there in 268 + 83?

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 83 + 268 the same as 268 + 83?

Yes. Addition is commutative, so both give 351; the column looks the same with either number on top.

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