Addition with Regrouping: 389 + 389

Addition with Regrouping Calculator
First addend
Second addend

What is 389 + 389?

Answer

389 + 389 =
778

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

389 + 389 in a column. Carries are the small circled digits above the columns.
1carry1carry
3 8 9
+389
778

Column by column: 389 + 389

  • Ones: 9 + 9 = 18 — write 8, carry 1.
  • Tens: 8 + 8 + 1 = 17 — write 7, carry 1.
  • Hundreds: 3 + 3 + 1 = 7 — write 7.

389 + 389 = 778

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Column additions with 389

ExampleSum
389 + 105494
389 + 128517
389 + 136525
389 + 149538
389 + 172561
389 + 187576
389 + 203592
389 + 214603
389 + 239628
389 + 256645
389 + 268657
389 + 291680
389 + 307696
389 + 325714
389 + 348737
389 + 354743
389 + 376765
389 + 389778

FAQ

What is 389 + 389?

389 + 389 = 778

How do you check that 389 + 389 = 778?

Subtract one addend from the sum: 778 − 389 = 389. Getting the other addend back means the sum is right.

How many carries are there in 389 + 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.

See Also