Question

1. The Milky Way galaxy has about 500,000,000 stars. The Andromeda galaxy has about 1,000,000,000,000 stars. How many stars do the two galaxies have all together?

5 x 10^12 stars
1.0005 x 10^12 stars
5.1 x 10^8 stars
1.0005 x 10^8 stars​

Answer 1

The answer would be 1.0005 x 10^12

Or, 1,000,500,000,000

Explanation:

You take the first number, 1.0005 then move the decimal to the right 12 times.

Add zeros the the empty spots. Then you get your answer.