Unit 2 Test Review

Write 0.000972 in scientific notation.

• 9.72 x 10^-4
• 9.72 x 10^-3
• 972 x 10^-4
• 9.72 x 10⁴

Write 7.113 x 10⁷ in standard form.

• 71,130,000
• 7,113,000
• 0.0000007113
• 7,113

Tags

CCSS.8.EE.A.3

4. Find the combined mass of Earth and Venus. Earth is approximately 5.9 x 10²⁴ kg and Venus is approximately 4.9 x 10²⁴ kg.

• Add
• Subtract
• Multiply
• Divide

Tags

CCSS.8.EE.A.4

The mean distance from the sun to Earth is 9.29 x 10⁷ miles. Jupiter's mean distance from the sun is 4.8388 x 10⁸ miles. What is the difference between these two distances in miles?

• Addition

• Multiplication

• Subtraction

• Division

Tags

CCSS.8.EE.A.4

The mass of he sun is 1.989 x 10³⁰ kilograms. The mass of the earth is 5.98 x 10²⁴ kilograms. How many times bigger is the sun than the earth?

• Division

• Multiplication

• Addition

• Subtraction

Tags

CCSS.8.EE.A.4

Write the following in proper scientific notation:

33.45 x 10^-3

• 3.345 x 10^-4

• 3.345 x 10^-2

Tags

CCSS.8.EE.A.3

Write the following in proper scientific notation:
0.63 x 10³

• 6.3 x 10⁴
• 6.3 x 10²

Compare 2.01 x 10¹⁵ and 2.8 x 10¹³. Which number is larger?

• 2.01 x 10¹⁵

• 2.8 x 10¹³

Tags

CCSS.8.EE.A.4

Which of these numbers is the smallest?

• 3.5 x 10⁷

• 300,000,000

• 1.5 x 10⁹

• 55,000,000

Tags

CCSS.8.EE.A.3

Which of these numbers is the greatest?

• 9 x 10⁹

• 810,000,000

• 9.02 x10⁹

• 6.35 x10⁷

Tags

CCSS.8.EE.A.3