July 2012: Olympics, 4-color cabin, product placement, and a magician

(from July 29, 2012)

"Math Olympic Evennts"

(from July 21, 2012)

"The Four-Color Cabin"

The Guthries residence...







(from July 14, 2012)

"Chalkboards and Billboards"

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Find the weekly math webcomic at mathplane.com

(from July 7, 2012)

"Two-time Math Magician"

Webcomic #101000 base 2

In Base 2, there is only one number between  10  and  100...    In Base 3, how many numbers are between 10 and 100?

Answers (and more math topics) in the spare parts section of mathplane.com