Chapter 7 Exponents and Scientific Notation

1) Which of the following is true?

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CCSS.8.EE.A.1

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CCSS.8.EE.A.2

Shantel read that the distance between the sun and Mercury is about 36,000,000 miles. Which of the following correctly represents this distance in scientific notation?

• .36 x 10⁸

• 3.6 x 10⁷

• 3.6 x 10^-7

• 3.6 x 10⁶

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CCSS.8.EE.A.3

In one year, a theme park had approximately 2 x 10⁷ guests. In the same year, a second theme park had approximately 4 x 10⁶ guests. Which is a true statement about the number of guests each theme park had?

• The first theme park had about 5 times as many guests than the second.

• The second theme park had about 2 times as many guests than the first.

• The first theme park had about 10 times as many guests than the second.

• The first theme park had about 2 times as many guests than the second.

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CCSS.8.EE.A.3

Jett knows that x² = 64. Which of the following represents the step that Jett should take to find the correct value of x?

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CCSS.8.EE.A.2

A single piece of paper weighs about 9.9 x 10^-3 pounds. Millie bought 5 packages of paper, and each package holds 300 pieces of paper. Find the total weight of the 5 packages expressed in standard notation.

• .0495 pounds

• 2.97 pounds

• 14.85 pounds

• 16.5 pounds

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CCSS.7.EE.B.3

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CCSS.8.EE.A.1

Andrew is at an airport where the largest airplane weighs 3 x 10⁵ pounds and the smallest airplane weighs 12,500 pounds. How many times heavier is the largest airplane than the smallest airplane?

• 24 times

• 2.4 times

• .04 times

• 41 times

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CCSS.8.EE.A.4

A professional basketball stadium can hold 21,000 people. A motor racing venue can hold 8.5 x 10⁴ people. How many more people can the motor racing venue hold than the basketball stadium? Express your answer in scientific notation.

• 8.29 x 10⁵

• 4.04 x 10¹

• 6.4 X 10³

• 6.4 X 10⁴

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CCSS.8.EE.A.4

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CCSS.8.EE.A.1