Addition with Regrouping: 23,456 + 12,345

Addition with Regrouping Calculator
First addend
Second addend

What is 23,456 + 12,345?

Answer

23,456 + 12,345 =
35,801

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

23,456 + 12,345 in a column. Carries are the small circled digits above the columns.
1carry1carry
2 3 4 5 6
+12345
35801

Column by column: 23,456 + 12,345

  • Ones: 6 + 5 = 11 — write 1, carry 1.
  • Tens: 5 + 4 + 1 = 10 — write 0, carry 1.
  • Hundreds: 4 + 3 + 1 = 8 — write 8.
  • Thousands: 3 + 2 = 5 — write 5.
  • Ten thousands: 2 + 1 = 3 — write 3.

23,456 + 12,345 = 35,801

Second check: 35,801 − 23,456 = 12,345

Similar examples to practise

See Also

Column additions with 12,345

ExampleSum
23,451 + 12,34535,796
23,452 + 12,34535,797
23,453 + 12,34535,798
23,454 + 12,34535,799
23,455 + 12,34535,800
23,456 + 12,34535,801
23,457 + 12,34535,802
23,458 + 12,34535,803
23,459 + 12,34535,804
23,460 + 12,34535,805
23,461 + 12,34535,806

FAQ

What is 23,456 + 12,345?

23,456 + 12,345 = 35,801

How do you check that 23,456 + 12,345 = 35,801?

Subtract one addend from the sum: 35,801 − 12,345 = 23,456, and 35,801 − 23,456 = 12,345. Getting the other addend back means the sum is right.

How many carries are there in 23,456 + 12,345?

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 12,345 + 23,456 the same as 23,456 + 12,345?

Yes. Addition is commutative, so both give 35,801; the column looks the same with either number on top.