Addition with Regrouping: 45,089 + 23,456

Addition with Regrouping Calculator
First addend
Second addend

What is 45,089 + 23,456?

Answer

45,089 + 23,456 =
68,545

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

45,089 + 23,456 in a column. Carries are the small circled digits above the columns.
1carry1carry
4 5 0 8 9
+23456
68545

Column by column: 45,089 + 23,456

  • Ones: 9 + 6 = 15 — write 5, carry 1.
  • Tens: 8 + 5 + 1 = 14 — write 4, carry 1.
  • Hundreds: 0 + 4 + 1 = 5 — write 5.
  • Thousands: 5 + 3 = 8 — write 8.
  • Ten thousands: 4 + 2 = 6 — write 6.

45,089 + 23,456 = 68,545

Second check: 68,545 − 45,089 = 23,456

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Column additions with 23,456

ExampleSum
45,084 + 23,45668,540
45,085 + 23,45668,541
45,086 + 23,45668,542
45,087 + 23,45668,543
45,088 + 23,45668,544
45,089 + 23,45668,545
45,090 + 23,45668,546
45,091 + 23,45668,547
45,092 + 23,45668,548
45,093 + 23,45668,549
45,094 + 23,45668,550

FAQ

What is 45,089 + 23,456?

45,089 + 23,456 = 68,545

How do you check that 45,089 + 23,456 = 68,545?

Subtract one addend from the sum: 68,545 − 23,456 = 45,089, and 68,545 − 45,089 = 23,456. Getting the other addend back means the sum is right.

How many carries are there in 45,089 + 23,456?

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 23,456 + 45,089 the same as 45,089 + 23,456?

Yes. Addition is commutative, so both give 68,545; the column looks the same with either number on top.

See Also