Addition with Regrouping: 89 + 19

Addition with Regrouping Calculator
First addend
Second addend

What is 89 + 19?

Answer

89 + 19 =
108

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

89 + 19 in a column. Carries are the small circled digits above the columns.
1carry1carry
8 9
+19
108

Column by column: 89 + 19

  • Ones: 9 + 9 = 18 — write 8, carry 1.
  • Tens: 8 + 1 + 1 = 10 — write 0, carry 1.
  • Hundreds: the carried 1 — write 1.

89 + 19 = 108

Second check: 108 − 89 = 19

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FAQ

What is 89 + 19?

89 + 19 = 108

How do you check that 89 + 19 = 108?

Subtract one addend from the sum: 108 − 19 = 89, and 108 − 89 = 19. Getting the other addend back means the sum is right.

How many carries are there in 89 + 19?

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 19 + 89 the same as 89 + 19?

Yes. Addition is commutative, so both give 108; the column looks the same with either number on top.