3 posts tagged with multiplication. (View popular tags)

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Is there any point to the 12 times table? [more inside]

posted by Cat Pie Hurts on Jun 27, 2013 - 159 comments

posted by Cat Pie Hurts on Jun 27, 2013 - 159 comments

posted by albrecht on Nov 29, 2011 - 50 comments

Who's Afraid of the Seven Times Table? *Ernst Kummer, one of the great mathematicians of the late 1800s, was hopeless at arithmetic. He was giving an advanced maths lecture and in the middle of a complicated calculation he needed to know what six times seven was. “Um ... six times seven is ... six times seven . . .” A student put up his hand: “41, Professor.” Kummer chalked 41 on the blackboard. “No, no, Professor!” shouted another. “It’s 44!” Kummer gave the students a quizzical look. “Come, come, gentlemen. It can’t be both. It must be either one or the other!”* [more inside]

posted by storybored on Sep 27, 2011 - 168 comments

posted by storybored on Sep 27, 2011 - 168 comments

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