MAA Found Math for the Week of May 14, 2012
MAA Found Math: Japheth Wood writes, "Here's some math I found in the NYC subway, in the Franklin Avenue subway station (on the C train in Brooklyn). It appears to be a re-tiling of the wall in a pattern that suggests the distributive law, (2 + 8)×(4 + 11) = 2×4 + 2×11 + 8×4 + 8×11."
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