Saturday, July 31, 2010

Math In The News - Facebook

Facebook has tons of friends - as of July 21st that number is over 500 million! 

  • Twitter has 105 million users. That is _____ fewer than Facebook. Estimate the answer, then calculate. 
  • LinkedIn has 70 million users. Facebook has ____ more users than LinkedIn. 
  • Together, Twitter and LinkedIn have _____ fewer users than Facebook.
  • Facebook has a goal of reaching 1 billion users.  How many more do they need?

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