Scientific notation

[metukah]

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Ok, maybe this is a REALLY stupid question, but how would you go about simplifying this the quickest:

3.0 x 10^8 / 6.0 x 10^-7

(note "/" means divided)
and the answer is 5 x 10^14

thanks!

 

[loveoforganic]

3/6 = 0.5

8 - (-7) = 15

answer = 0.5*10^15 = 5*10^14

 

[metukah]

thanks

 

[Inkoate]

A good site for practice with it is

http://www.internet4classrooms.com/..._standard_notation_math_seventh_7th_grade.htm

Plenty of problems ranging in difficulty.

 

[TheRealAngeleno]

To adjust the decimal point, I like to use the mnemonic LARS (Left Add Right Subtract).