Addition with Regrouping: 54 + 36

Addition with Regrouping Calculator
First addend
Second addend

What is 54 + 36?

Answer

54 + 36 =
90

With regrouping: 1 carry — into the tens

54 + 36 in a column. Carries are the small circled digits above the columns.
1carry
5 4
+36
90

Column by column: 54 + 36

  • Ones: 4 + 6 = 10 — write 0, carry 1.
  • Tens: 5 + 3 + 1 = 9 — write 9.

54 + 36 = 90

Second check: 90 − 54 = 36

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FAQ

What is 54 + 36?

54 + 36 = 90

How do you check that 54 + 36 = 90?

Subtract one addend from the sum: 90 − 36 = 54, and 90 − 54 = 36. Getting the other addend back means the sum is right.

How many carries are there in 54 + 36?

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 36 + 54 the same as 54 + 36?

Yes. Addition is commutative, so both give 90; the column looks the same with either number on top.