1. COURSE 3 LESSON 7-1
Scientific Notation
At one point, the distance from Earth to the moon is  1010 in. Write this number in standard form.
Move the decimal 10 places to the right. Insert zeros as necessary. .
 1010 =
= 15,134,310,000
At one point, the distance from Earth to the moon is 15,134,310,000 in.
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2. COURSE 3 LESSON 7-1
Scientific Notation
The diameter of the planet Jupiter is about 142,800 km. Write this number in scientific notation.
142,800 = 1 42,800.
The decimal point moves 5 places to the left. .
= 1.428  105
Use 5 as the exponent of 10.
The diameter of the planet Jupiter is about  105 km.
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