HOW TO EASILY SQUARE A NUMBER ENDING WITH 5

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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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Posted by SHRENIK SHAH at 11:15 PM

2 comments:

tuskii said...

dude this was thot 2 us when v were in 5th so nothing new in it

June 1, 2008 at 1:11 AM
Unknown said...

This is not correcr way for 85^2.. Try it

August 30, 2008 at 12:53 AM

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