180 Days of Ideas for Discussion in Math Class.
(as of 9July2014, we're in overtime!)
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Wednesday, May 21, 2014
129: Helpers
If it takes me 60 minutes to cook dinner by myself, and 90 minutes if one of my kids is "helping" me, how long would it take her to do it herself?
— Matt Enlow (@CmonMattTHINK) May 10, 2014
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