Vedic Mathematics Made Easy
on April 08, 2013
This book has a wonderful technique by which you can multiply 5 or 6 digit numbers and yet get the answer in only a single line! The other techniques that I found really useful are how to find the square root, cube root and squares of all numbers in only 1 second...
I also liked the super simple approach to solve Algebra and Geometry questions....really awesome book...must read!