SOLUTION: Express each scientific notation. Round to two digits after the decimal point. Saturn's average distance from the sun is 887 million miles, and Earth's average distance from the

Question 1015824: Express each scientific notation. Round to two digits after the decimal point.
Saturn's average distance from the sun is 887 million miles, and Earth's average distance from the sun is 93 million miles. How many miles closer to the sun is Earth?
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
this problem can be done fairly simply by doing the addition or subtraction in decimal notation and then converting to scientific notation after you're done.

887 million minus 93 million is equal to 794 million.

794 million is equal to 794 * 10^6.

since scientific notation requires only exactly 1 digit to the left of the decimal point, then 794 * 10^6 becomes equal to 7.94 * 10^2 * 10^6 which is then equal to 7.94 * 10^8

in scientific notation, the earth is 7.94 * 10^8 miles closer to the sun than saturn is.

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