8/29 Scientific Notation Real World

2. On average, Mercury is about 57,000,000 km from the sun, whereas Neptune is about  km from the sun. What is the difference between Neptune’s and Mercury’s distances from the sun?

• Add

• Subtract

• Multiply

• Divide

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

How is the following number written in scientific notation?

450,000

• 4.5  x  10⁵

• 45  x  10⁵

• 4.5  x  10⁴

• 4.5  x  10⁶

How is the number below written in scientific notation?

0.000398

• 39.8  x  10^-5

• 3.98  x  10^-5

• 3.98  x  10^-4

• 39.8  x  10^-6

Which of the following is the correct way to write 3.97  x  10^-2 in standard form?

• 0.000397

• 0.0397

• 0.0000397

• 0.397

Which is the correct way to write the number 3.5 x 10⁶  in standard notation?

• 0.0000035

• 35,000,000

• 3,500,000

• 0.00000035

Which of these is the largest?

• 9.9 x 10^​−1

  
  

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• 8.11 x 10^​11

  
  

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• 7.7 x 10^​22

  
  

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• 5.2 x 10^​21

  
  

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The diameter of the planet Mercury is 4.87 x 10³ kilometers. The diameter of the planet Venus is 1.21 x 10⁴ kilometers. The diameter of Earth is 1.28 x 10⁴  kilometers. The diameter of Mars is 6.79 x 10³ kilometers. Which planet has the smallest diameter?

• Mercury
• Earth
• Venus
• Mars