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Topic: Methods for quick calculations in mind (must watch)
Replies: 3   Last Post: Oct 30, 2012 10:02 PM

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yahooji82@gmail.com

Posts: 4
Registered: 10/28/12
Methods for quick calculations in mind (must watch)
Posted: Oct 28, 2012 2:26 AM
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Hi All, this are few trick for quick calculation...for example learn how to square 48 or 109 without using a calculator in matter of few seconds...

http://www.youtube.com/watch?v=yuF17grxjgU



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