Addition with Regrouping: 45,089 + 3,579

Addition with Regrouping Calculator
First addend
Second addend

What is 45,089 + 3,579?

Answer

45,089 + 3,579 =
48,668

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

45,089 + 3,579 in a column. Carries are the small circled digits above the columns.
1carry1carry
4 5 0 8 9
+3579
48668

Column by column: 45,089 + 3,579

  • Ones: 9 + 9 = 18 — write 8, carry 1.
  • Tens: 8 + 7 + 1 = 16 — write 6, carry 1.
  • Hundreds: 0 + 5 + 1 = 6 — write 6.
  • Thousands: 5 + 3 = 8 — write 8.
  • Ten thousands: nothing to add — write 4.

45,089 + 3,579 = 48,668

Second check: 48,668 − 45,089 = 3,579

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FAQ

What is 45,089 + 3,579?

45,089 + 3,579 = 48,668

How do you check that 45,089 + 3,579 = 48,668?

Subtract one addend from the sum: 48,668 − 3,579 = 45,089, and 48,668 − 45,089 = 3,579. Getting the other addend back means the sum is right.

How many carries are there in 45,089 + 3,579?

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 3,579 + 45,089 the same as 45,089 + 3,579?

Yes. Addition is commutative, so both give 48,668; the column looks the same with either number on top.

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