How to rapidly multiply 2 digit numbers up to 100 !

For my full course on Speed Math Techniques please go here : tinyurl.com/poz...
A super fast way of multiplying 2 digit numbers . With a bit of practice, you could do these calculations mentally.
A Vedic mathematics concept - Urdhva Tiryak Sutra.
Suitable for young children/kids and professionals. Develop your number sense.
ACKNOWLEDGEMENTS:
openclipart.org
mathforum.org/l...
www.buildyourme...
The book of Vedic Mathematics
The Tecmath Channel (KZbin)
The MindYourDecisions Channel (KZbin)
Individuals involved in Video:
Ayush Sinha, Sanjay Noronha, Satyajit Sinha, Preeti Kaul