Japanese Multiplication History

When we say 3 times 2 that is the same as saying 3 groups of 2 and we can show these three groups as 3 rows and 2 columns or 3 columns and two rows.

Japanese multiplication history. Japanese multiplication how does it work. It is commonly referred to as the vedic or mayan or japanese method. Some of the worksheets displayed are grade 6 math circles november 56 2013 multiplication multiplication methods characteristics of japanese mathematics lessons the soroban abacus handbook 3x2 lattice multiplication b multiplication and division of fractions 2 mental maths strategies for multiplication and division. Draw sets of parallel lines representing each digit of the first number to be multiplied.

Showing top 8 worksheets in the category japanese multiplication. January 17 2011 tech4mathed algebra arithmetic algorithms education teaching teaching online 16 comments. Here is a video of japanese multiplication. My brother sent me a link to this video that teaches japanese multiplication thanks tim.

The japanese multiplication method is an algorithm for multiplying two large numbers by representing both numbers by a group of lines that form a diamond pattern. How to use japanese multiplication method. This method is just breaking up the numbers into their tens hundreds and so on so that you can keep track of place values when multiplying. She does a nice job showing why there s nothing particularly special about this japanese visual multiplication.

But perhaps we should be calling it a chinese method though there are other chinese methods perhaps more worthy of the appellation in 2014 presh talwalkar made another youtube video about the stick multiplication which received over a million views in a month. Most of the japanese learning involves basic shapes and quantitative analysis skill to solve the problem and after having crossed one such method i couldn t help but make it a valuable post on my blog under the maths is fun section the below images will teach you multiplications using lines or japanese multiplication method taught for school kids in japan. The number of points of intersection near each vertex of the diamond are then counted in a certain order to obtain the solution. I learned about this technique in my history of math class and vi hart talked about it in a video back in 2011.

First watch the video and then see if you. I have come across some fun math problems yes math can be fun through the internet and friends. You re right i m talking about an array. The earliest reference i can find is a youtube video dated nov 22 2006.

In order to understand how japanese multiplication works we must start back at the good old reliable method of organizing equal groups in rows and columns. Draw sets of parallels perpendicular to the first sets of parallels corresponding to each digit of the second number. People have called it chinese stick multiplication or how the japanese multiply without source.