Column Addition: 34 + 12

Addition with Regrouping Calculator
First addend
Second addend

What is 34 + 12?

Answer

34 + 12 =
46

No regrouping: each column is added on its own

34 + 12 in a column. No carries.
3 4
+12
46

Column by column: 34 + 12

  • Ones: 4 + 2 = 6 — write 6.
  • Tens: 3 + 1 = 4 — write 4.

34 + 12 = 46

Second check: 46 − 34 = 12

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FAQ

What is 34 + 12?

34 + 12 = 46

How do you check that 34 + 12 = 46?

Subtract one addend from the sum: 46 − 12 = 34, and 46 − 34 = 12. Getting the other addend back means the sum is right.

How many carries are there in 34 + 12?

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

Is 12 + 34 the same as 34 + 12?

Yes. Addition is commutative, so both give 46; the column looks the same with either number on top.