Addition with Regrouping: 683 + 427

Addition with Regrouping Calculator
First addend
Second addend

What is 683 + 427?

Answer

683 + 427 =
1,110

The sum is longer than the addends: 3 carries — into the tens, the hundreds and the thousands; the last one makes a new digit

683 + 427 in a column. Carries are the small circled digits above the columns.
1carry1carry1carry
6 8 3
+427
1110

Column by column: 683 + 427

  • Ones: 3 + 7 = 10 — write 0, carry 1.
  • Tens: 8 + 2 + 1 = 11 — write 1, carry 1.
  • Hundreds: 6 + 4 + 1 = 11 — write 1, carry 1.
  • Thousands: the carried 1 — write 1.

683 + 427 = 1,110

Second check: 1,110 − 683 = 427

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FAQ

What is 683 + 427?

683 + 427 = 1,110

How do you check that 683 + 427 = 1,110?

Subtract one addend from the sum: 1,110 − 427 = 683, and 1,110 − 683 = 427. Getting the other addend back means the sum is right.

How many carries are there in 683 + 427?

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 427 + 683 the same as 683 + 427?

Yes. Addition is commutative, so both give 1,110; the column looks the same with either number on top.