Addition with Regrouping: 123,456 + 8,042

Addition with Regrouping Calculator
First addend
Second addend

What is 123,456 + 8,042?

Answer

123,456 + 8,042 =
131,498

With regrouping: 1 carry — into the ten thousands

123,456 + 8,042 in a column. Carries are the small circled digits above the columns.
1carry
1 2 3 4 5 6
+8042
131498

Column by column: 123,456 + 8,042

  • Ones: 6 + 2 = 8 — write 8.
  • Tens: 5 + 4 = 9 — write 9.
  • Hundreds: 4 + 0 = 4 — write 4.
  • Thousands: 3 + 8 = 11 — write 1, carry 1.
  • Ten thousands: 2 + 1 = 3 — write 3.
  • Hundred thousands: nothing to add — write 1.

123,456 + 8,042 = 131,498

Second check: 131,498 − 123,456 = 8,042

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Column additions with 8,042

ExampleSum
123,451 + 8,042131,493
123,452 + 8,042131,494
123,453 + 8,042131,495
123,454 + 8,042131,496
123,455 + 8,042131,497
123,456 + 8,042131,498
123,457 + 8,042131,499
123,458 + 8,042131,500
123,459 + 8,042131,501
123,460 + 8,042131,502
123,461 + 8,042131,503

FAQ

What is 123,456 + 8,042?

123,456 + 8,042 = 131,498

How do you check that 123,456 + 8,042 = 131,498?

Subtract one addend from the sum: 131,498 − 8,042 = 123,456, and 131,498 − 123,456 = 8,042. Getting the other addend back means the sum is right.

How many carries are there in 123,456 + 8,042?

1 carry: 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 8,042 + 123,456 the same as 123,456 + 8,042?

Yes. Addition is commutative, so both give 131,498; the column looks the same with either number on top.

See Also