Addition with Regrouping: 67 + 33

Addition with Regrouping Calculator
First addend
Second addend

What is 67 + 33?

Answer

67 + 33 =
100

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

67 + 33 in a column. Carries are the small circled digits above the columns.
1carry1carry
6 7
+33
100

Column by column: 67 + 33

  • Ones: 7 + 3 = 10 — write 0, carry 1.
  • Tens: 6 + 3 + 1 = 10 — write 0, carry 1.
  • Hundreds: the carried 1 — write 1.

67 + 33 = 100

Second check: 100 − 67 = 33

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FAQ

What is 67 + 33?

67 + 33 = 100

How do you check that 67 + 33 = 100?

Subtract one addend from the sum: 100 − 33 = 67, and 100 − 67 = 33. Getting the other addend back means the sum is right.

How many carries are there in 67 + 33?

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 33 + 67 the same as 67 + 33?

Yes. Addition is commutative, so both give 100; the column looks the same with either number on top.

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