Addition with Regrouping: 203 + 197

Addition with Regrouping Calculator
First addend
Second addend

What is 203 + 197?

Answer

203 + 197 =
400

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

203 + 197 in a column. Carries are the small circled digits above the columns.
1carry1carry
2 0 3
+197
400

Column by column: 203 + 197

  • Ones: 3 + 7 = 10 — write 0, carry 1.
  • Tens: 0 + 9 + 1 = 10 — write 0, carry 1.
  • Hundreds: 2 + 1 + 1 = 4 — write 4.

203 + 197 = 400

Second check: 400 − 203 = 197

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FAQ

What is 203 + 197?

203 + 197 = 400

How do you check that 203 + 197 = 400?

Subtract one addend from the sum: 400 − 197 = 203, and 400 − 203 = 197. Getting the other addend back means the sum is right.

How many carries are there in 203 + 197?

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 197 + 203 the same as 203 + 197?

Yes. Addition is commutative, so both give 400; the column looks the same with either number on top.

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