Question

Saturn is 8.7 x 108 miles from the sun. The earth is 9.1 x 10' miles from the sun. How much closer to the sun is one planet than the other?

Answer 1

Saturn is:

$8.7\times10^8$

and earth is:

$9.1\times10^7$

so we can made the cienthific notation equal so:

$8.7\times10^8=87\times10^7$

so now we can rest the difference so:

$\begin{gathered} 87\times10^7-9.1\times10^7 \\ =77.9\times10^7 \end{gathered}$