Carnival of Mathematics #22 » Fun Math Blog
My binary card number trick is there. There are 15 other excellent articles and it will take me about two weeks to get through all of them. Which reminds me: I have information that should have gone into my binary cards post that I forgot about. I'll post it after my Mac is home. After Christmas. Be sure to submit your article for the next Carnival of Mathematics #23, which will be on December 28th at The Math Less Traveled.
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