Vedic mathematics

 amazing math  methods -   Mental Math!

Learn how to perform  math operation quickly and easily using Vedic Math .   Once you understand this method you HAVE TO practice it in your mind  

https://www.youtube.com/watch?v=G3iRXOSzO30

https://www.youtube.com/watch?v=qU26jj4MM_A

https://www.youtube.com/watch?v=9nXhnj7jNqk

https://www.youtube.com/watch?v=mTwRt9c1c6I