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how Art Benjamin does it
Posted By: garyoDate: Monday, 9 June 2014, at 1:05 p.m. In Response To: Remembering 1 Number while calc the 2th (Sebastiaan Kuijs)
In Response To: Remembering 1 Number while calc the 2th (Sebastiaan Kuijs)
http://en.wikipedia.org/wiki/Mnemonic_major_system
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