Addition with Regrouping: 83 + 47

Addition with Regrouping Calculator
First addend
Second addend

What is 83 + 47?

Answer

83 + 47 =
130

The sum is longer than the addends: 2 carries — into the tens and the hundreds; the last one makes a new digit

83 + 47 in a column. Carries are the small circled digits above the columns.
1carry1carry
8 3
+47
130

Column by column: 83 + 47

  • Ones: 3 + 7 = 10 — write 0, carry 1.
  • Tens: 8 + 4 + 1 = 13 — write 3, carry 1.
  • Hundreds: the carried 1 — write 1.

83 + 47 = 130

Second check: 130 − 83 = 47

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FAQ

What is 83 + 47?

83 + 47 = 130

How do you check that 83 + 47 = 130?

Subtract one addend from the sum: 130 − 47 = 83, and 130 − 83 = 47. Getting the other addend back means the sum is right.

How many carries are there in 83 + 47?

2 carries: 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 + 83 the same as 83 + 47?

Yes. Addition is commutative, so both give 130; the column looks the same with either number on top.