Addition with Regrouping: 647 + 376

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First addend
Second addend

What is 647 + 376?

Answer

647 + 376 =
1,023

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

647 + 376 in a column. Carries are the small circled digits above the columns.
1carry1carry1carry
6 4 7
+376
1023

Column by column: 647 + 376

  • Ones: 7 + 6 = 13 — write 3, carry 1.
  • Tens: 4 + 7 + 1 = 12 — write 2, carry 1.
  • Hundreds: 6 + 3 + 1 = 10 — write 0, carry 1.
  • Thousands: the carried 1 — write 1.

647 + 376 = 1,023

Second check: 1,023 − 647 = 376

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FAQ

What is 647 + 376?

647 + 376 = 1,023

How do you check that 647 + 376 = 1,023?

Subtract one addend from the sum: 1,023 − 376 = 647, and 1,023 − 647 = 376. Getting the other addend back means the sum is right.

How many carries are there in 647 + 376?

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 376 + 647 the same as 647 + 376?

Yes. Addition is commutative, so both give 1,023; the column looks the same with either number on top.

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