Happy New Year math fans! The first challenge video of 2015 has arrived. It's Challenge 14, showing here on the homepage and on YouTube.Your time starts now!
Share your thoughts and solutions in a response video, or via the new discussion section on the Challenge 14 page. Your time starts now!
Share your thoughts and solutions in a response video, or via the new discussion section on the Challenge 14 page. Your time starts now!
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