In the Tang Dynasty, Li Yuan beat Li Shimin at the beginning

Chapter 201

Cui Yuran carefully read what he wrote again.

That's right, why is this Fat Four?

Those below who have not taken Li Ke's class are right.Those who are wrong are of course those who have attended Li Ke's class.

Li Ke nodded and said: "Mr. Cui's writing is not wrong, and his writing is beautiful. But what we are going to learn today is not this kind of characters. What we are going to learn today is called Arabic numerals. What are Arabic numerals? Everyone look at it." ha!"

Li Ke said, and added ten numbers such as 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, etc. under the words written by Cui Yuran.It looks like a translation, it's clear at a glance

what?
The old guys all widened their eyes, what the hell is this?

Those who had never attended Li Ke's class also stared wide-eyed.

What is this situation?

Li Ke said: "Arabic numerals, also known as Indian numerals, are composed of ten counting symbols of 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.

Arabic numerals were first invented by the Indians, and then spread to Europe by the Arabs to carry them forward.

Because of this, people think it was invented by the Arabs, so people call it Arabic numerals. "

Li Tai raised his hand and asked, "Who are the Arabs, and who are the Indians? Why haven't we heard of it?"

Everyone stared at Li Ke with wide eyes. Obviously, they didn't know what Arabia and India were.

Li Ke said helplessly: "Today we have a mathematics class, not a geography class. But since you asked, I will tell you about it.

Both Arabia and India are in our Asia.This India is the place where Tang Sanzang went to learn Buddhist scriptures, probably called Tianzhu!Located in West Asia. "

The students listening to the class below have a lot of question marks on their heads.

The problem baby Li Tai asked again: "What is this Asia and West Asia?"

Li Ke smiled and said, "Okay, since you want to know, I'll tell you about it. Now the most active places in our entire world are only four places.

Asia is what the world calls a region.The first is our Datang, located in the east of Asia, also known as East Asia.

The second is West Asia, where the Arab Empire exists.

The third is India, also known as the Jieri Dynasty.

The fourth is in Europe next to West Asia, and now the Eastern Roman Empire is the most powerful.

Now, Heraclius the Great of the Eastern Roman Empire is rising rapidly and is grabbing land everywhere, and he is almost beaten into a dog.

If it weren't for the Western Turks blocking him there, he might be able to hit Datang.

What I want to tell you is that the world is big.We must study hard and innovate, otherwise, we will be beaten if we fall behind.

I can also proudly tell you that the current Datang is the most stable and relatively powerful in the world.

The world is really big, and we really can't just stare at our own one-third of an acre of land.

Students, work hard!We must develop rapidly, otherwise, we will be beaten if we fall behind. "

A curious classmate couldn't help asking: "His Royal Highness, how do you know everything?"

Li Ke said with a smile: "Read more, learn more, there is beauty in the book, there is a golden house in the book. As long as you read more, you can know everything."

Li Tai asked: "What is Yan Ruyu?"

Li Ke flicked the tip of the chalk over: "Do you want it? How old are you? Just think about that mess."

Everyone immediately burst into laughter.

Li Ke said: "Okay, let's continue to talk about Arabic numerals. Why do we learn this Arabic numerals? It is because it is simple, easy to record, and convenient to calculate.

It is very simple, all numbers are composed of 0 numbers from 9 to 10.Now I'm going to teach you how to recognize them..."

Next, Li Ke was there to teach them to recognize these numbers.

Everyone was surprised to find that these numbers are really very simple.

They are all scholars and can calculate.Just after listening to it once, they will understand.

Then, Li Ke began to teach them addition and subtraction.

These people already know how to calculate, teach them once, and basically understand.

Li Ke said: "Learning this Arabic numeral has another advantage, that is, it is convenient for mental calculation.

After class, you can try it out, give each other questions in twos, try to do mental calculations, and see if it works? "

Soon, they also found out.It's really good to use this thing to do mental calculations.

If you use those capital letters to do mental calculations, he just can't do it, and you really can't do it if you don't accept it.

For example: What is one thousand three hundred and fifty-seven minus six hundred and twenty-four?You don't need to imagine with Arabic numerals, you try to calculate it in your head?

A group of guys, young and old, are very interested in it, and they study very hard.

Addition and subtraction are easy, this group of people with calculation skills.It is also very fast to learn. It only took an hour, and everyone basically learned it.

Finally, when teaching multiplication and division, Li Ke drew them a 99 multiplication table on the blackboard.Then have them write it down and memorize it by rote.

Those young people didn't feel anything at once.

But Li Yuan and the others quickly discovered the extraordinaryness of this nine-nine multiplication table.One by one was shocked.

His Royal Highness the King of Shu is truly extraordinary.It's not easy to make something like a ninety-nine multiplication table.

Royal Palace.

In the Legislative Hall.

Li Shimin is discussing state affairs with the ministers.

Suddenly, a young eunuch came in, saluted Li Shimin, who was above the high position, and said, "Your Majesty, Kong Yingda, the Imperial College's sacrificial wine, is begging to see you outside."

Li Shimin frowned and said, "Xuan."

"Kong Yingda has met His Majesty."

As soon as Kong Yingda came in, he knelt down to Li Shimin.

"Your Majesty, you can't ignore it! The students in our Zijian have been skipping classes one after another in the past two days. Today, more than half of them have skipped classes. If this continues, our Zijian will not be able to continue to operate, Your Majesty."

Fang Xuanling, Wei Zheng, Changsun Wuji and others all looked at Kong Yingda very puzzled.

It is really unheard of for so many people to skip class!
Li Shimin was also very puzzled and asked: "What's going on?"

Kong Yingda quickly said: "Your Majesty, according to my investigation, His Royal Highness the King of Shu opened a school on Dongshan Mountain, attracting all the students from our Zijian School. That's why this happened. Your Majesty, you can't ignore it!"

Everyone became curious when they heard it.

Their attention is all on attracting two words.

Kong Yingda said: "According to my investigation, His Royal Highness the King of Shu taught a set of Arabic numerals on Dongshan Mountain. The other Four Books and Five Classics are not taught at all, which is completely contrary to our Tang culture.

This is truly deviant, Your Majesty.His Royal Highness, what is he going to do?Does he want to abandon the culture left by our ancestors?Your Majesty, this must be dealt with seriously! "

(End of this chapter)