Addition with Regrouping: 4,422 + 578

Addition with Regrouping Calculator
First addend
Second addend

What is 4,422 + 578?

Answer

4,422 + 578 =
5,000

With regrouping: 3 carries — into the tens, the hundreds and the thousands

4,422 + 578 in a column. Carries are the small circled digits above the columns.
1carry1carry1carry
4 4 2 2
+578
5000

Column by column: 4,422 + 578

  • Ones: 2 + 8 = 10 — write 0, carry 1.
  • Tens: 2 + 7 + 1 = 10 — write 0, carry 1.
  • Hundreds: 4 + 5 + 1 = 10 — write 0, carry 1.
  • Thousands: 4 + 1 = 5 — write 5.

4,422 + 578 = 5,000

Second check: 5,000 − 4,422 = 578

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Column additions with 578

ExampleSum
4,417 + 5784,995
4,418 + 5784,996
4,419 + 5784,997
4,420 + 5784,998
4,421 + 5784,999
4,422 + 5785,000
4,423 + 5785,001
4,424 + 5785,002
4,425 + 5785,003
4,426 + 5785,004
4,427 + 5785,005

FAQ

What is 4,422 + 578?

4,422 + 578 = 5,000

How do you check that 4,422 + 578 = 5,000?

Subtract one addend from the sum: 5,000 − 578 = 4,422, and 5,000 − 4,422 = 578. Getting the other addend back means the sum is right.

How many carries are there in 4,422 + 578?

3 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 578 + 4,422 the same as 4,422 + 578?

Yes. Addition is commutative, so both give 5,000; the column looks the same with either number on top.

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