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Homework Help: Which of the following numbers can be added directly in exponential notation?

  1. Mar 10, 2012 #1
    Which of the following numbers can be added directly in exponential notation?

    1. 3x10^-4

    2. 600x10

    3. 32.6x10^-3

    4. 0.4x10^-4

    _______________________________

    a. 1 and 2

    c. 1 and 4

    d. 2 and 4

    b. 1and3
     
  2. jcsd
  3. Mar 10, 2012 #2

    chemisttree

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    So what do you think?
     
  4. Mar 10, 2012 #3
    a ! 1and2 im not sure please help :(
     
  5. Mar 10, 2012 #4

    chemisttree

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    What do you think is meant by "add directly" in this problem?
     
  6. Mar 10, 2012 #5
    im not sure what does it really mean but now im looking at it i think it can be c, 1and4, because both of them have the same exponent (-4) !?
     
  7. Mar 10, 2012 #6

    chemisttree

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    And right you are!
     
  8. Mar 10, 2012 #7
    Thank you so much for the help :)
     
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