Addition with Regrouping: 4,515 + 485

Addition with Regrouping Calculator
First addend
Second addend

What is 4,515 + 485?

Answer

4,515 + 485 =
5,000

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

4,515 + 485 in a column. Carries are the small circled digits above the columns.
1carry1carry1carry
4 5 1 5
+485
5000

Column by column: 4,515 + 485

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

4,515 + 485 = 5,000

Second check: 5,000 − 4,515 = 485

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FAQ

What is 4,515 + 485?

4,515 + 485 = 5,000

How do you check that 4,515 + 485 = 5,000?

Subtract one addend from the sum: 5,000 − 485 = 4,515, and 5,000 − 4,515 = 485. Getting the other addend back means the sum is right.

How many carries are there in 4,515 + 485?

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 485 + 4,515 the same as 4,515 + 485?

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

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