Addition with Regrouping: 485 + 389

Addition with Regrouping Calculator
First addend
Second addend

What is 485 + 389?

Answer

485 + 389 =
874

With regrouping: 2 carries — into the tens and the hundreds

485 + 389 in a column. Carries are the small circled digits above the columns.
1carry1carry
4 8 5
+389
874

Column by column: 485 + 389

  • Ones: 5 + 9 = 14 — write 4, carry 1.
  • Tens: 8 + 8 + 1 = 17 — write 7, carry 1.
  • Hundreds: 4 + 3 + 1 = 8 — write 8.

485 + 389 = 874

Second check: 874 − 485 = 389

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FAQ

What is 485 + 389?

485 + 389 = 874

How do you check that 485 + 389 = 874?

Subtract one addend from the sum: 874 − 389 = 485, and 874 − 485 = 389. Getting the other addend back means the sum is right.

How many carries are there in 485 + 389?

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 389 + 485 the same as 485 + 389?

Yes. Addition is commutative, so both give 874; the column looks the same with either number on top.

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