Earth is approximately 9.3 × 10^7 miles from the sun. Saturn is approximately 8.87 × 10^8 miles from the sun. About how much farther is Saturn from the sun than Earth is?

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Answer 1 · 2018-03-19T00:16:16

#7.89*10^8#

You subtract the two numbers.
#8.87*10^8 - 9.8*10^7 = 789000000 = 7.89*10^8#

Notice that #9.8*10^7 = 0.98*10^8#. Taking into account significant figures (two after decimal), we find that the answer is still #7.89*10^8#