Addition with Regrouping: 54 + 46

Addition with Regrouping Calculator
First addend
Second addend

What is 54 + 46?

Answer

54 + 46 =
100

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

54 + 46 in a column. Carries are the small circled digits above the columns.
1carry1carry
5 4
+46
100

Column by column: 54 + 46

  • Ones: 4 + 6 = 10 — write 0, carry 1.
  • Tens: 5 + 4 + 1 = 10 — write 0, carry 1.
  • Hundreds: the carried 1 — write 1.

54 + 46 = 100

Second check: 100 − 54 = 46

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FAQ

What is 54 + 46?

54 + 46 = 100

How do you check that 54 + 46 = 100?

Subtract one addend from the sum: 100 − 46 = 54, and 100 − 54 = 46. Getting the other addend back means the sum is right.

How many carries are there in 54 + 46?

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 46 + 54 the same as 54 + 46?

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