MrMathemagician
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Max Gurinas
I like math and chess and lots and lots of variants. Also, A^2 = (A - B) (A + B) + B^2. Now all you have to do is memorize the first 50 squares to show your friends you can square 3- digit numbers in your head! Help for the 40s : For 0 <= n <= 9, (40 + n)^2 = 1500 + 100n + (10 - n)^2.
Lincoln Park, Chicago, IL United States
Member since 15 Mar 2018
Active
Time spent playing: 23 hours 59 minutes
Time featured on TV: 14 minutes
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