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This math youtube video tutorial explains how to use a few simple mental math tricks as it relates to basic arithmetic concepts such ...

Mental Math | Multiply 2 digit numbers quickly | Square Root in 3 seconds - Crazy Math Trick | Math Olympiad | Harvard University ...

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How predictable are you? See if I can guess your number. Blog post (why it works): ...

(rated 4.3/5 stars on 12 reviews) http://amzn.to/1LOCI4U "The Best Mental Math Tricks" teaches how you can look like a math ...