Addition with Regrouping: 602 + 485

Addition with Regrouping Calculator
First addend
Second addend

What is 602 + 485?

Answer

602 + 485 =
1,087

The sum is longer than the addends: 1 carry — into the thousands; the last one makes a new digit

602 + 485 in a column. Carries are the small circled digits above the columns.
1carry
6 0 2
+485
1087

Column by column: 602 + 485

  • Ones: 2 + 5 = 7 — write 7.
  • Tens: 0 + 8 = 8 — write 8.
  • Hundreds: 6 + 4 = 10 — write 0, carry 1.
  • Thousands: the carried 1 — write 1.

602 + 485 = 1,087

Second check: 1,087 − 602 = 485

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FAQ

What is 602 + 485?

602 + 485 = 1,087

How do you check that 602 + 485 = 1,087?

Subtract one addend from the sum: 1,087 − 485 = 602, and 1,087 − 602 = 485. Getting the other addend back means the sum is right.

How many carries are there in 602 + 485?

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 485 + 602 the same as 602 + 485?

Yes. Addition is commutative, so both give 1,087; the column looks the same with either number on top.

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