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Last week, in Number Sense 042 , Awkward Goat and Billy Goat Gruff discovered that clock arithmetic was closed under addition, all sums were included in the original set of numbers. So far, clock ...
by Orinoco
Comment Count 10 comments on Sat Mar 03, 2012 at 07:35 AM PST with 8 Recommends
Last week, in Number Sense 043 , Awkward Goat and Billy Goat Gruff thought they proved that clock arithmetic was commutative and associative. But there is trouble in paradise...
by Orinoco
Comment Count 1 comments on Sat Mar 10, 2012 at 10:31 AM PST with 6 Recommends