Addition with Regrouping: 468 + 389

Addition with Regrouping Calculator
First addend
Second addend

What is 468 + 389?

Answer

468 + 389 =
857

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

468 + 389 in a column. Carries are the small circled digits above the columns.
1carry1carry
4 6 8
+389
857

Column by column: 468 + 389

  • Ones: 8 + 9 = 17 — write 7, carry 1.
  • Tens: 6 + 8 + 1 = 15 — write 5, carry 1.
  • Hundreds: 4 + 3 + 1 = 8 — write 8.

468 + 389 = 857

Second check: 857 − 468 = 389

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FAQ

What is 468 + 389?

468 + 389 = 857

How do you check that 468 + 389 = 857?

Subtract one addend from the sum: 857 − 389 = 468, and 857 − 468 = 389. Getting the other addend back means the sum is right.

How many carries are there in 468 + 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 + 468 the same as 468 + 389?

Yes. Addition is commutative, so both give 857; the column looks the same with either number on top.

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