Addition with Regrouping: 402 + 298

Addition with Regrouping Calculator
First addend
Second addend

What is 402 + 298?

Answer

402 + 298 =
700

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

402 + 298 in a column. Carries are the small circled digits above the columns.
1carry1carry
4 0 2
+298
700

Column by column: 402 + 298

  • Ones: 2 + 8 = 10 — write 0, carry 1.
  • Tens: 0 + 9 + 1 = 10 — write 0, carry 1.
  • Hundreds: 4 + 2 + 1 = 7 — write 7.

402 + 298 = 700

Second check: 700 − 402 = 298

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FAQ

What is 402 + 298?

402 + 298 = 700

How do you check that 402 + 298 = 700?

Subtract one addend from the sum: 700 − 298 = 402, and 700 − 402 = 298. Getting the other addend back means the sum is right.

How many carries are there in 402 + 298?

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 298 + 402 the same as 402 + 298?

Yes. Addition is commutative, so both give 700; the column looks the same with either number on top.

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