Japanese Multiplication Table

Here is an interesting method to visualize multiplication that reduces it to simple counting.

Japanese multiplication table. Each cluster of intersections corresponds to one of the four smaller products that go into multiplying two numbers for instance the left cluster 3 1 is what gets you the 300 or 3 hundreds. Youtuber mindyourdecisions has an excellent explanatory video so to follow along with their example we ll go with 12 x 13. 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. The japanese multiplication method is really just a visual way of representing those four steps.

This method is applicable for 2 digits 3 digits more digits also. Draw sets of parallel lines representing each digit of the firs. 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. It is interesting and very easy way of multiplication where we get our answer by drawing lines only.

Extremely gross simulation demonstrates how coronavirus spreads at the dinner table 83 diggs coronavirus health japanese researchers used a supercomputer to create an animation of how particles spread when sitting at the dinner table. First pick a multiplication problem. Here s how the trick works. 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.