Negative Exponents (Grade 8)

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Negative Exponents

1. 
What is [math]3^-3[/math]?
  1. [math]1/27[/math]
  2. [math]1/9[/math]
  3. [math]27/1[/math]
  4. [math]9[/math]
 
2. 
Which of the following is NOT the same as [math]2^-3[/math]?
  1. [math]8[/math]
  2. [math]0.125[/math]
  3. [math]1/8[/math]
  4. [math]1/2^3[/math]
3. 
[math]1/32[/math] can also be written as
  1. [math]2^-3[/math]
  2. [math]2^-4[/math]
  3. [math]2^-5[/math]
  4. [math]2^-6[/math]
 
4. 
[math]5^-3 = [/math]
  1. 25
  2. 125
  3. [math]1/25[/math]
  4. [math]1/125[/math]
5. 
[math]3^2 xx 3^-5 = [/math]
  1. [math]3^3[/math]
  2. [math]3^-3[/math]
  3. [math]3^7[/math]
  4. [math]3^-7[/math]
 
6. 
[math]4^3 xx 4^-4 = [/math]
  1. [math]4[/math]
  2. [math]1/4[/math]
  3. [math]1/4^7[/math]
  4. [math]1/4^12[/math]
7. 
[math]3^-3/3^-2 = [/math]
  1. [math]3[/math]
  2. [math]9[/math]
  3. [math]1/3[/math]
  4. [math]1/9[/math]
 
8. 
[math]10^2/10^-3 = [/math]
  1. 1,000
  2. 10,000
  3. 100,000
  4. 1,000,000
9. 
Which of the following is true?
  1. [math]10^0 < 10^-3[/math]
  2. [math]2^-3 < 3^-2[/math]
  3. [math]7^-2 < 7^-3[/math]
  4. [math]6^-2<6^-1[/math]
 
10. 
Which one of the following is true?
  1. [math]4^-2 < 4^-3[/math]
  2. [math]5^-2 > 2 ^ -5[/math]
  3. [math](-2)^4 = 2^-4[/math]
  4. [math]5^2(5)^-2>2^5(2)^-5[/math]

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