Japanese Multiplication By Lines

Remember that numbers are represented using place value.

Japanese multiplication by lines. Whatever the roots. Do not count anything where there is no line crossing nor intersections that include a dotted linelines that coss the dotted lines. 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. 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.

Let us see with an example 12 x 31 372 visual explanation using lines draw the equivalent lines for the digits. Those would be zeros in the later addition. A three digit by three digit multiplication would take up a 3 3 section of squares. Draw sets of parallel lines representing each digit of the first number to be multiplied the multiplicand see figs.

This amazing multiplication trick possible has it s origins in japan although i have heard arguements it is a vedic math trick. Put dots where each line crosses another line. Japanese multiplication derives way to multiply things visually using the lines. Sounds too good to be true right.

You re right i m talking about an array. How to use japanese multiplication method. This multiplication works better for all the two digit multiples and multiplicand. Let s take 12 32 as our example.

It may come from china japan or somewhere else. The japanese multiplication method. Draw sets of parallel lines representing each digit of the first number to be multiplied. 1 and 2 further below.

However you never know when you ll need to do quick math and the japanese multiplication method also called multiply by lines can help you figure out the answer simply by counting. 12 means one ten and two ones 32 means three tens and two. Line multiplication is sometimes called stick multiplication and its origins are unclear with some source claiming it comes from the japanese chinese or vedic cultures. Draw sets of parallels perpendicular to the first sets of parallels corresponding to each digit of the second number.

Either way this trick allo. A viral tiktok video shows an old unique way to multiply using sticks. Here is an interesting method to visualize multiplication that reduces it to simple counting. The origins of the multiplication method aren t clear.