Addition with Regrouping: 19 + 12

Addition with Regrouping Calculator
First addend
Second addend

What is 19 + 12?

Answer

19 + 12 =
31

With regrouping: 1 carry — into the tens

19 + 12 in a column. Carries are the small circled digits above the columns.
1carry
1 9
+12
31

Column by column: 19 + 12

  • Ones: 9 + 2 = 11 — write 1, carry 1.
  • Tens: 1 + 1 + 1 = 3 — write 3.

19 + 12 = 31

Second check: 31 − 19 = 12

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FAQ

What is 19 + 12?

19 + 12 = 31

How do you check that 19 + 12 = 31?

Subtract one addend from the sum: 31 − 12 = 19, and 31 − 19 = 12. Getting the other addend back means the sum is right.

How many carries are there in 19 + 12?

1 carry: 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 12 + 19 the same as 19 + 12?

Yes. Addition is commutative, so both give 31; the column looks the same with either number on top.