Column Addition: 453 + 23

Addition with Regrouping Calculator
First addend
Second addend

What is 453 + 23?

Answer

453 + 23 =
476

No regrouping: each column is added on its own

453 + 23 in a column. No carries.
4 5 3
+23
476

Column by column: 453 + 23

  • Ones: 3 + 3 = 6 — write 6.
  • Tens: 5 + 2 = 7 — write 7.
  • Hundreds: nothing to add — write 4.

453 + 23 = 476

Second check: 476 − 453 = 23

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FAQ

What is 453 + 23?

453 + 23 = 476

How do you check that 453 + 23 = 476?

Subtract one addend from the sum: 476 − 23 = 453, and 476 − 453 = 23. Getting the other addend back means the sum is right.

How many carries are there in 453 + 23?

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

Is 23 + 453 the same as 453 + 23?

Yes. Addition is commutative, so both give 476; the column looks the same with either number on top.