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Deb's Mathematics Blog

By Deb Russell, About.com Guide to Mathematics since 2002

Here's a Challenge for You:

Friday December 26, 2008
Do you think it's possible to design a clock using only 9's? Before you check out this link, give it your best shot. And, what makes this particular clock so interesting is that it only has 3 nines in each of its numeric representations for each of the 12 numbers. What a great challenge to offer your students upon return from the holidays. See how it's done.

A wish to all of the users here at math.about.com: "I sincerely hope that you have a wonderfully, successful new year in 2009."

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