Lumus -> RE: THIS IS ELSEWHERE (2/29/2008 2:54:29 PM)
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Well, I like to use it as a handy reference because most figures can be rounded or more easily divided into. For Fahrenheit to Celcius conversion I usually cheat, since it only comes up for me periodically; but the "easy" method for me is to subtract 32, multiply by 5, divide by 9. Usually with that formula I can easily break the figure down in my head within a reasonable time. Like that whole -40 = -40 thing: -40-32 = -72; x5 is 360; /9 is 40. Depends on how well you get along with mathematics, I suppose. [;)] I do math almost as well as writing, and I'm not above shortcuts in either!
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