Addition with Regrouping: 67 + 17

Addition with Regrouping Calculator
First addend
Second addend

What is 67 + 17?

Answer

67 + 17 =
84

With regrouping: 1 carry — into the tens

67 + 17 in a column. Carries are the small circled digits above the columns.
1carry
6 7
+17
84

Column by column: 67 + 17

  • Ones: 7 + 7 = 14 — write 4, carry 1.
  • Tens: 6 + 1 + 1 = 8 — write 8.

67 + 17 = 84

Second check: 84 − 67 = 17

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FAQ

What is 67 + 17?

67 + 17 = 84

How do you check that 67 + 17 = 84?

Subtract one addend from the sum: 84 − 17 = 67, and 84 − 67 = 17. Getting the other addend back means the sum is right.

How many carries are there in 67 + 17?

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 17 + 67 the same as 67 + 17?

Yes. Addition is commutative, so both give 84; the column looks the same with either number on top.