Japanese Line Multiplication Trick

January 17 2011 tech4mathed algebra arithmetic algorithms education teaching teaching online 16 comments.

Japanese line multiplication trick. Draw sets of parallels perpendicular to the first sets of parallels corresponding to each digit of the second number. Here s how the trick works. You need to know how many places are in your number and what digit is in each place. For example if you are multiplying 34 12 displaystyle 34 times 12 you would determine that the first number 34 has a 4 in the ones place and a 3 in the tens place step 2 draw parallel lines to represent the tens place of your first number.

Japanese multiplication how does it work. This handy math trick sometimes referred to as the japanese multiplication trick lets little kids visual learners and math enthusiasts of all ages easily figure out 58 34 753 691 and more by drawing diagonal lines counting the intersections and then assembling the totals. How to use japanese multiplication method. First watch the video and then see if you.

Step 1 determine the place values of your first number. Draw the lines at about a. Here is an example. Youtuber mindyourdecisions has an excellent explanatory video so to follow along with their example we ll go with 12 x 13.

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. Put dots where each line crosses another line. The number of lines you draw will correspond to the digit in the tens place. Presh talwalkar of mind your decisions created the helpful video.

Not only is this a cool trick but it actually visualizes. I have come across some fun math problems yes math can be fun through the internet and friends. As you can see in the animated gif below each base ten block is replaced by the intersection of the lines situated between each base ten block. Here is a video of japanese multiplication.

One japanese method of multiplication involves drawing parallel and perpendicular lines without using numbers in the solving process. The number 12 is drawn as 1 line then with some space 2 lines. For those that cannot watch the videos the method is a visual kind of lattice multiplication and or distributive multiplication with grouping of units tens hundreds etc. Draw sets of parallel lines representing each digit of the first number to be multiplied.

Either way this trick allo. This amazing multiplication trick possible has it s origins in japan although i have heard arguements it is a vedic math trick.