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Just something cool …

 

 

 

 

 

http://blog.wolfram.com/2011/06/01/test-your-subitizing-ability/

 

http://www.numberspiral.com/index.html

 

 

 

 

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This entry was posted on November 10, 2011, 3:07 pm and is filed under Uncategorized. You can follow any responses to this entry through RSS 2.0. You can leave a response, or trackback from your own site.

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