Addition with Regrouping: 578 + 348

Addition with Regrouping Calculator
First addend
Second addend

What is 578 + 348?

Answer

578 + 348 =
926

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

578 + 348 in a column. Carries are the small circled digits above the columns.
1carry1carry
5 7 8
+348
926

Column by column: 578 + 348

  • Ones: 8 + 8 = 16 — write 6, carry 1.
  • Tens: 7 + 4 + 1 = 12 — write 2, carry 1.
  • Hundreds: 5 + 3 + 1 = 9 — write 9.

578 + 348 = 926

Second check: 926 − 578 = 348

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FAQ

What is 578 + 348?

578 + 348 = 926

How do you check that 578 + 348 = 926?

Subtract one addend from the sum: 926 − 348 = 578, and 926 − 578 = 348. Getting the other addend back means the sum is right.

How many carries are there in 578 + 348?

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 348 + 578 the same as 578 + 348?

Yes. Addition is commutative, so both give 926; the column looks the same with either number on top.