Addition with Regrouping: 17 + 17

Addition with Regrouping Calculator
First addend
Second addend

What is 17 + 17?

Answer

17 + 17 =
34

With regrouping: 1 carry — into the tens

17 + 17 in a column. Carries are the small circled digits above the columns.
1carry
1 7
+17
34

Column by column: 17 + 17

  • Ones: 7 + 7 = 14 — write 4, carry 1.
  • Tens: 1 + 1 + 1 = 3 — write 3.

17 + 17 = 34

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FAQ

What is 17 + 17?

17 + 17 = 34

How do you check that 17 + 17 = 34?

Subtract one addend from the sum: 34 − 17 = 17. Getting the other addend back means the sum is right.

How many carries are there in 17 + 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.