Column Addition: 203 + 23

Addition with Regrouping Calculator
First addend
Second addend

What is 203 + 23?

Answer

203 + 23 =
226

No regrouping: each column is added on its own

203 + 23 in a column. No carries.
2 0 3
+23
226

Column by column: 203 + 23

  • Ones: 3 + 3 = 6 — write 6.
  • Tens: 0 + 2 = 2 — write 2.
  • Hundreds: nothing to add — write 2.

203 + 23 = 226

Second check: 226 − 203 = 23

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FAQ

What is 203 + 23?

203 + 23 = 226

How do you check that 203 + 23 = 226?

Subtract one addend from the sum: 226 − 23 = 203, and 226 − 203 = 23. Getting the other addend back means the sum is right.

How many carries are there in 203 + 23?

None: no column adds up to 10 or more, so every digit of the sum is written straight away.

Is 23 + 203 the same as 203 + 23?

Yes. Addition is commutative, so both give 226; the column looks the same with either number on top.