Addition with Regrouping: 136 + 45

Addition with Regrouping Calculator
First addend
Second addend

What is 136 + 45?

Answer

136 + 45 =
181

With regrouping: 1 carry — into the tens

136 + 45 in a column. Carries are the small circled digits above the columns.
1carry
1 3 6
+45
181

Column by column: 136 + 45

  • Ones: 6 + 5 = 11 — write 1, carry 1.
  • Tens: 3 + 4 + 1 = 8 — write 8.
  • Hundreds: nothing to add — write 1.

136 + 45 = 181

Second check: 181 − 136 = 45

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FAQ

What is 136 + 45?

136 + 45 = 181

How do you check that 136 + 45 = 181?

Subtract one addend from the sum: 181 − 45 = 136, and 181 − 136 = 45. Getting the other addend back means the sum is right.

How many carries are there in 136 + 45?

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 45 + 136 the same as 136 + 45?

Yes. Addition is commutative, so both give 181; the column looks the same with either number on top.