Comparing Numbers in Scientific Notation

Which of the following numbers is the least (smallest)?

• 7 x 10⁸
• 7.1 x 10⁸
• 7 x 10⁹
• 7.1 x 10⁹

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CCSS.6.NS.C.7

Which number is the greatest?

• 5.25 x 10⁵
• 2.55 x 10⁵
• 5.55 x 10⁵
• 5 x 10⁵

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CCSS.6.EE.A.1

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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

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CCSS.6.EE.A.1

CCSS.6.NS.C.7

Order the following from greatest to least.

• 3.2 x 10⁸
  1.2 x 10⁸
  7 x 10⁵
  5 x 10³
• 5 x 10³
  7 x 10⁵
  1.2 x 10⁸
  3.2 x 10⁸
• 7 x 10⁵
  5 x 10³
  3.2 x 10⁸
  1.2 x 10⁸

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CCSS.6.EE.A.1

CCSS.6.NS.C.7

Which of these numbers is the least?

• 3.5 x 10⁷
• 5 x 10⁷
• 3 x 10⁷
• 5.5 x 10⁷

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CCSS.6.NS.C.7

Which of these numbers is the greatest?

• 9 x 10⁹
• 8 x 10⁹
• 9 x 10⁸
• 8 x 10⁸

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CCSS.6.EE.A.1

CCSS.6.NS.C.7

Order the following from least to greatest.

• 6.8 x 10⁶
  6.6 x 10⁶
  6.1 x 10⁶
  6 x 10⁶
• 6 x 10⁶
  6.1 x 10⁶
  6.6 x 10⁶
  6.8 x 10⁶
• 6 x 10⁶
  6.6 x 10⁶
  6.8 x 10⁶
  6.1 x 10⁶

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Which of these numbers is the greatest?

• 5.406 x 10⁸
• 5.504 x 10⁷
• 5.604 x 10⁹
• 6.504 x 10⁸

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CCSS.6.NS.C.7

Which of these numbers is the least?

• 9 x 10⁴
• 3.01 x 10⁹
• 1.2 x 10⁵
• 1.901 x 10⁴

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CCSS.6.NS.C.7

Which of the following is the GREATEST in value?

• 9.23 x 10^-2
• 9.23 x 10^-17
• 9.23 x 10^-8
• 9.23 x 10^-5

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