Addition with Regrouping: 3,579 + 1,234

Addition with Regrouping Calculator
First addend
Second addend

What is 3,579 + 1,234?

Answer

3,579 + 1,234 =
4,813

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

3,579 + 1,234 in a column. Carries are the small circled digits above the columns.
1carry1carry
3 5 7 9
+1234
4813

Column by column: 3,579 + 1,234

  • Ones: 9 + 4 = 13 — write 3, carry 1.
  • Tens: 7 + 3 + 1 = 11 — write 1, carry 1.
  • Hundreds: 5 + 2 + 1 = 8 — write 8.
  • Thousands: 3 + 1 = 4 — write 4.

3,579 + 1,234 = 4,813

Second check: 4,813 − 3,579 = 1,234

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Recalculate with different values ↑

Column additions with 1,234

ExampleSum
1,234 + 1,2342,468
2,468 + 1,2343,702
3,579 + 1,2344,813
4,805 + 1,2346,039
5,096 + 1,2346,330
6,713 + 1,2347,947
7,350 + 1,2348,584
8,042 + 1,2349,276
12,345 + 1,23413,579
23,456 + 1,23424,690
45,089 + 1,23446,323
70,312 + 1,23471,546
123,456 + 1,234124,690
405,067 + 1,234406,301
987,654 + 1,234988,888

FAQ

What is 3,579 + 1,234?

3,579 + 1,234 = 4,813

How do you check that 3,579 + 1,234 = 4,813?

Subtract one addend from the sum: 4,813 − 1,234 = 3,579, and 4,813 − 3,579 = 1,234. Getting the other addend back means the sum is right.

How many carries are there in 3,579 + 1,234?

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 1,234 + 3,579 the same as 3,579 + 1,234?

Yes. Addition is commutative, so both give 4,813; the column looks the same with either number on top.

See Also