Addition with Regrouping: 71 + 47

Addition with Regrouping Calculator
First addend
Second addend

What is 71 + 47?

Answer

71 + 47 =
118

The sum is longer than the addends: 1 carry — into the hundreds; the last one makes a new digit

71 + 47 in a column. Carries are the small circled digits above the columns.
1carry
7 1
+47
118

Column by column: 71 + 47

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

71 + 47 = 118

Second check: 118 − 71 = 47

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FAQ

What is 71 + 47?

71 + 47 = 118

How do you check that 71 + 47 = 118?

Subtract one addend from the sum: 118 − 47 = 71, and 118 − 71 = 47. Getting the other addend back means the sum is right.

How many carries are there in 71 + 47?

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 47 + 71 the same as 71 + 47?

Yes. Addition is commutative, so both give 118; the column looks the same with either number on top.