You learn something new every day, indeed I discovered a new way to do multiplications with much fun: the Japanese method. The approach is pretty graphical but obviously the maths is the same used in the traditional method. I show you in a video four examples and a gallery with a comparison of the two techniques. Sure you will appreciate it and amazing your friends with awesome maths!
The Japanese method is an elegant and handful procedure to solve the multiplications reducing them to a sum of dots subdivided in horizontal and vertical lines.