Addition with Regrouping: 47 + 34

Addition with Regrouping Calculator
First addend
Second addend

What is 47 + 34?

Answer

47 + 34 =
81

With regrouping: 1 carry — into the tens

47 + 34 in a column. Carries are the small circled digits above the columns.
1carry
4 7
+34
81

Column by column: 47 + 34

  • Ones: 7 + 4 = 11 — write 1, carry 1.
  • Tens: 4 + 3 + 1 = 8 — write 8.

47 + 34 = 81

Second check: 81 − 47 = 34

Similar examples to practise

See Also

FAQ

What is 47 + 34?

47 + 34 = 81

How do you check that 47 + 34 = 81?

Subtract one addend from the sum: 81 − 34 = 47, and 81 − 47 = 34. Getting the other addend back means the sum is right.

How many carries are there in 47 + 34?

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 34 + 47 the same as 47 + 34?

Yes. Addition is commutative, so both give 81; the column looks the same with either number on top.