1,852,542 views 137 on YTPak
9,621 182

Published on 10 May 2014 | over 2 years ago

Some people say this is "how the Japanese multiply." Others say this is "Vedic Math." I'm not sure of the origin, but this is a visual way to multiply two numbers and it does work. The video also shows how to use the same method to multiply algebraic expressions like (x + 2)(x + 3).

Here's a blog post I wrote on this: mindyourdecisions.com/blog/2012/01/27/multiplicating-with-lines-math-trick-how-it-works/

Many people asked me to write a reference guide. So I wrote a book "Multiply Numbers By Drawing Lines." www.amazon.com/gp/product/1500866148/

I've made a few follow-up videos you might like.

Multiply by lines (advanced examples)
www.youtube.com/watch

Multiply by lines (why it works)
www.youtube.com/watch

Multiply by lines (the rotation trick)
www.youtube.com/watch

If you like my videos, you can support me at Patreon: www.patreon.com/mindyourdecisions

Connect on social media. I update each site when I have a new video or blog post, so you can follow me on whichever method is most convenient for you.

My Blog: mindyourdecisions.com/blog/
Twitter: twitter.com/preshtalwalkar
Facebook: www.facebook.com/pages/Mind-Your-Decisions/168446714965
Google+: plus.google.com/108336608566588374147/posts
Pinterest: www.pinterest.com/preshtalwalkar/
Tumblr: preshtalwalkar.tumblr.com/
Instagram: instagram.com/preshtalwalkar/
Patreon: www.patreon.com/mindyourdecisions

Newsletter (sent about 2 times a year): eepurl.com/KvS0r

My Books

"The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 4/5 stars on 23 reviews) www.amazon.com/gp/product/1500497444

"The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 5/5 stars on 1 review) www.amazon.com/gp/product/1523231467/

"Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.5/5 stars on 11 reviews. www.amazon.com/gp/product/1517421624/

"Math Puzzles Volume 2" is a sequel book with more great problems. www.amazon.com/gp/product/1517531624/

"Math Puzzles Volume 3" is the third in the series. www.amazon.com/gp/product/1517596351/

"40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) www.amazon.com/gp/product/1517319307/

"The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 3 reviews) www.amazon.com/gp/product/150779651X/

"Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 1 review) www.amazon.com/gp/product/1500866148/

Loading related videos...