Scientific Notation

Which is bigger? 9.7 x 10⁵ or 3.5 x 10⁶ ?

• 9.7 x 10⁵

• 3.5 x 10⁶

Which is bigger? 7.5 x 10³ or 9.42 x 10³ ?

• 9.42 x 10³

• 7.5 x 10³

Which is bigger? 3.7 x 10⁷ or 8.5 x 10^{4 ?}

• 3.7 x 10⁷

• 8.5 x 10⁴

Write 2.595 x 10^-2 in standard notation.

• 259.5

• 2.59500

• 0.02595

• 0.002595

Express 0.00678 in scientific notation.

• 6.78 x 10²

• 6.78 x 10³

• 6.78 x 10^-2

• 6.78 x 10^-3

The size of an atom is 5 x 10^-5 m. Express this number in standard notation.

• 0.00005

• 0.000005

• 50,000

• 500,000

Mercury's average distance from the Earth is approximately 57,900,000 km. Earth's distance to the Sun is approximately 150,000,000 km. What is the distance between the Sun and Mercury? Express in scientific notation. (Hint: "Distance between" means the difference so find the difference and then change the answer to scientific notation)

• 5.79 x 10⁷

• 9.21 x 10⁷

• 1.5 x 10⁸

• 2.079 x 10⁸

There were 20,000 runners in the Fort Worth Marathon. Each runner runs a distance of 26 miles. What is the total distance run by all of the runners expressed in scientific notation?

• 5.2 x 10⁵

• 4.2 x 10⁵

• 2.6 x 10⁵

• 4.6 x 10⁴

Eric is a monkey who really likes coconuts. In 6 months, he has gathered 8 x 10⁵ coconuts. How many coconuts will he have in one year? Express in scientific notation.

• 1.6 x 10⁵

• 9.6 x 10⁵

• 1.6 x 10⁶

• 9.6 x 10⁶

Light travels at approximately 3.0 x 10⁸ meters per second. How far does light travel in one minute? Please express in scientific notation. (Hint: There are 60 seconds in one minute!)

• 1.8 x 10¹¹

• 1.8x 10⁷

• 1.8 x 10⁹

• 1.8 x 10¹⁰