To: sere
The book Dead Reckoning, Calculating Without Instruments by Ronald W. Doerfler is packed with calculation tricks like this one and many more sophisticated ones.
To: wideminded
Well there are some online certificate courses if you would like to learn or teach Vedic Mathematics.
For your convenience I am providing the links below:
Certificates courseShort course24 posted on
09/11/2004 12:00:50 AM PDT by
sere
(Start using it and see the difference.)
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