# How to calculate like the Japanese?

**Sommaire de notre article**

- How to calculate like the Japanese?
- How did mathematics invest cryptology?
- How to calculate with lines?
- Why is there no mathematical treatise in Japanese?
- Why are clubs so important in the Japanese school system?
- What are the different types of Japanese schools?
- What is the Japanese School’s grading system?

### How to calculate like the Japanese?

The multiplication **japanese**, kezako? The method is simple because it is visual and based only on addition. For each number, draw the same number of lines, digit by digit. By counting the intersections, you get the result of the multiplication.

### How did mathematics invest cryptology?

The encounter between **cryptology** and **math** goes through a reflection on practices and follows the evolution of **math** themselves. It is manifested by a classificatory type analysis, on the modes of encryption, on their instrumental practices, as well as in the attempts at decryption.

### How to calculate with lines?

Then draw a number of horizontal lines equal to this number, so we draw a **trait**. Take the hundreds digit of the first number, and do the same, draw three **features** parallel to the previous one. Continue like this for the tens and units digits.

### Why is there no mathematical treatise in Japanese?

In 1860, there is no translation of Western mathematical treatise into Japanese, probably due to the success of traditional mathematics (wasan 和算).

### Why are clubs so important in the Japanese school system?

Appearing in the mid-1950s, clubs are now so entrenched in the Japanese school system that it is generally frowned upon not to be part of any. All these aspects of the Japanese school system allow us to realize that the notion of belonging to the group is very quickly inculcated in young people.

### What are the different types of Japanese schools?

If he follows the classic curriculum, the young Japanese enters primary school – Shagako – at 7 years old and leaves at 13 years old (6 years). He then goes to college – Chugako – between 13 and 16 years old, then to high school – Kookoo – between 16 and 18 years old. The Japanese school is very selective.

### What is the Japanese School’s grading system?

The scoring system is quite special – it is actually a percentage (the overall score is calculated on a base of 100) based on several criteria. The spirit of competition is strong. It dominates the Japanese school and greatly influences mentalities. “We fight to be the best in the class.