Tuesday, June 10, 2008

HOW TO EASILY SQUARE A NUMBER ENDING WITH 5


If u want to square any 2 digit number ending with 5, u can do it just follow these steps1.Mulitply the first digit by itself + 1, and put 25 on the end. That is all u have to do
(25)^2 = (2x(2+1)) & 25
2 x 3 = 6
625

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