Addition with Regrouping: 498 + 402

Addition with Regrouping Calculator
First addend
Second addend

What is 498 + 402?

Answer

498 + 402 =
900

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

498 + 402 in a column. Carries are the small circled digits above the columns.
1carry1carry
4 9 8
+402
900

Column by column: 498 + 402

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

498 + 402 = 900

Second check: 900 − 498 = 402

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FAQ

What is 498 + 402?

498 + 402 = 900

How do you check that 498 + 402 = 900?

Subtract one addend from the sum: 900 − 402 = 498, and 900 − 498 = 402. Getting the other addend back means the sum is right.

How many carries are there in 498 + 402?

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 402 + 498 the same as 498 + 402?

Yes. Addition is commutative, so both give 900; the column looks the same with either number on top.