Nations using hieroglyphs have a different type of thinking. Does it affect their lives? Hard to tell. Such people are visual in nature, they figuratively perceive the world around them. And this system of perception does not bypass even the exact sciences. How the Japanese are multiplying will be interesting to everyone. Firstly, you don’t have to panicly look for a calculator, and secondly, this is a very exciting experience.
Draw
This is surprising, but Japanese children can multiply large numbers without even knowing the multiplication table. How do the Japanese multiply? They do it very simply, so simply that they use only basic drawing and counting skills. It’s easier to illustrate how this happens.
Suppose you want to multiply 123 by 321. First you need to draw one, two and three parallel lines, which will be placed diagonally from the upper left to the lower right. On the created groups of parallels, draw three, two and one line, respectively. They will also be placed diagonally from the lower left to the upper right.
As a result, we get the so-called rhombus (as in the figure above). If someone else does not understand, the number of lines in the group depends on the numbers that need to be multiplied.
We consider
So how do the Japanese multiply numbers? The next step is the calculation of intersection points. First, we separate in a semicircle the intersection of three lines with one and count the number of points. The resulting number is written under the rhombus. Further, in exactly the same way, we separate the areas where two lines intersect with three and one. We also consider the points of contact and write down, then we count the points that remain in the center. You should get the same result as in the figure below.
It is worth paying attention to the fact that if the central number is two-digit, then the first digit must be added to the number, which turned out when calculating the points of contact in the area to the left of the center. Thus, multiplying 123 by 321, we get 39 483.
This method can be used to multiply both two-digit and three-digit numbers. One problem is that if you have to count numbers like 999, 888, 777, etc., you will need to draw a lot of dashes.