Math

# MIND-BLOWING MATH DISCOVERY – Multiply Numbers By Lines Rotation Geometry

Since 2007, millions of people have watched videos on “how the Japanese multiply,” also known as “Chinese stick multiplication” or “Vedic Math.” With millions of people watching these videos, you would expect everything is known about this method. Surprisingly, there were neat tricks to be discovered! Last year I was the first person (to my knowledge) to apply the method for numbers with a digit 0 and for algebraic expressions like (x + 2)(x + 3). Here is a link to that video: https://www.youtube.com/watch?v=0SZw8jpfAk0

Now I have discovered another trick – you can rotate the diagram to solve even more multiplication problems! This is the first video to demonstrate a really amazing connection between arithmetic and geometry. I hope you find this worth sharing!

I wrote a book “Multiply Numbers By Drawing Lines” by request to answer many questions. Here is the origin of the book and details of its contents: http://mindyourdecisions.com/blog/2014/09/03/now-available-multiply-numbers-by-drawing-lines-book/

Here’s my video “Multiply Numbers By Drawing Lines” that, to my knowledge, was the first to illustrate 0-lines and algebraic expressions https://www.youtube.com/watch?v=0SZw8jpfAk0

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

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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) https://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) https://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. https://www.amazon.com/gp/product/1517421624/

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

“Math Puzzles Volume 3” is the third in the series. https://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) https://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) https://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) https://www.amazon.com/gp/product/1500866148/