Lu Zheng and the others couldn't help but pause in their movements, feeling incredulous, and then continued to count without believing in evil.

Soon, Lu Zheng came to the same result, which was actually the same as Li Changan.

No way, he must have known the answer before he came up with the question.

He didn't say much, and went straight to the second question.

"There are 26 acres of fertile land today, and there are fifteen civilians in total, and each person needs two acres of fertile land, can they be divided?"

"It's not enough, there are still four acres of fertile land."

Almost at the moment when Lu Zheng's question just fell, Li Changan directly gave the answer.

The question is really too simple, and he doesn't bother to pretend, so let's end this boring competition quickly.

Lu Zheng fiddled with the calculation in disbelief, and after a while, he looked at Li Changan with wide eyes, as if he had seen a ghost.

Then, it was Zhang Mingda's turn and others to come up with the question, just like just now, Li Changan could always give the answer in an instant, and often Lu Zheng and the others had not had time to fiddle with the calculation, and his answer had already come out.

If he knew the answer in advance when he came out of the question, then he definitely couldn't know the answer in advance when someone else came out of the question, right?

"God, Lord of the City, you are really a god, this ...... How exactly is this calculated? ”

Zhang Mingda's eyes lit up, and he couldn't wait to bow down to Li Changan.

"Li Changan, how did you do it?"

An Zhaoran covered his mouth in shock, his big eyes flickered, and he looked at Li Changan curiously.

She just wanted to join in the fun, but she didn't expect to see such a shocking scene.

Bai Xiaoyao's small mouth was also slightly open, adding a bit of cuteness to the original Gao Leng Fan, but she didn't expect Li Changan to bring her another surprise.

"It's just a simple arithmetic trick to learn not only mental arithmetic, but even calculate the height of the sun and moon from us."

Li Changan waved his hand and said the most shocking words in the most casual tone.

"Too ...... The height of the sun?! ”

An Zhaoran swallowed a mouthful of saliva, couldn't help but look up at the dazzling sun, and then swallowed a mouthful of saliva again.

For everyone, the sun is undoubtedly sacred, and people can't think about its height, but at this time Li Changan said that it can be measured?!

"Poof!"

Liu Qingfeng's shocked buttocks didn't sit firmly, and he fell directly from the stool to the ground, but he didn't know that he was still in a state of shock.

The others were also petrified, and looked at Li Changan in a daze.

This is so shocking, the city lord is so terrifying!

"You...... What you say is true? ”

Lu Zheng even used honorifics, and was shocked by Li Changan.

Li Changan smiled and said: "Of course it's true, but I will only teach this method to the people in the border city, since Dean Lu is unwilling to be the dean here, it can only be said that he has no chance with it, and Dean Lu will have to be prepared in the future, because any child here can calculate faster than you in arithmetic." ”

Lu Zheng was anxious on the spot, and hurriedly came to Li Changan's face, and said excitedly: "Respected city lord, which bastard is talking nonsense, I am one of the hundred people who are willing to be the dean of the border city, Liu Qingfeng, are you talking nonsense in front of the city lord, you are slandering, you are slandering me!" ”

Liu Qingfeng: "???? ”

Is this really my dean? I've never seen him so brazen!

Li Changan hesitated: "Dean Lu, don't force yourself, our border city has never been forced to be forced, the salary here is not as much as Bailu Academy, and life is not as comfortable as there, hey, you better go back." ”

"Lord City Lord, I have a heart to teach the people since I was a child, please Lord City Lord to fulfill me and let me shine here for the rest of my life!"

Lu Zheng's words were sincere, his eyes were red, and he was so sincere that he couldn't do it.

The corners of Li Changan's mouth hooked up with a smile, "In that case...... Then welcome Dean Lu to join us! ”

"Poof!"

Liu Qingfeng knelt on his knees suddenly, hugged Li Changan's thighs, and cried: "City Lord, I suddenly remembered, I have been having the same dream since I was a child, in my dream I will give everything for that city, think about it carefully, that city is a border city, I was ignorant before, I almost missed it, please ask the city lord to let me be the owner of the bookstore, I am definitely the first loyalty in the border city!" ”

Li Changan smiled and said, "Okay, get up, for your sake, I promised you too." ”

"Thank you Lord City, Lord City Lord is a lot, he is really a hero out of a young man, the first wise man in the world, and a model for my generation!" Liu Qingfeng slapped his ass as he got up.

An Zhaoran saw that the overall situation had been decided, and urged on the side: "Li Changan, can you tell us what method is now?" ”

"Of course you can, but this method can't be explained overnight, Xiaohe, go get a pen and paper."

Li Changan nodded, knowing that he had to show his hand first, so he commanded Xiaohe.

Soon, Xiaohe came with a pen and paper, and everyone quietly waited for Li Changan's performance.

Li Changan picked up the pen and wrote "1, 2, 3" on the paper...... 20" are twenty numbers.

He smiled and said, "I'll teach you the most basic first, these symbols are called numbers, that is, one, two, three, ......."

This is not difficult to understand, and everyone will soon accept it.

A hint of thoughtfulness flashed in Lu Zheng's eyes, and he said in amazement: "These symbols are simple and easy to understand, and it is indeed convenient to use them to represent numbers, great talent, the city lord is really too talented, and this kind of merit is no less than creating a new text!" ”

As he reminded, others realized how precious these numbers were.

This is enough to be famous and immortal, and they actually witnessed the birth of a new script!

The numbers in the Shenwu Continent at this time are the same as in ancient times in the previous life, using the words "one, two, and three......", which is not only complicated, but also cannot be used for operation, and it is clear which is stronger or weaker than the real number.

Li Changan said with a smile: "Dean Lu praised it falsely, these numbers will be popularized by you in the future and taught to the children, this city lord said that you can become the first teacher in the world, there is no truth, right?" ”

Rumble!

As soon as these words came out, it was like a thunderbolt in Lu Zheng's mind, making him stunned and fluttering.

Yes, although these numbers were invented by Li Changan, they will make him famous for eternity, but if I popularize them, then I can also get a little light, and it is also a merit that will last for centuries!

At this moment, he was excited, tears flowed down, and old tears were all over the place.

As a contemporary Confucian, his biggest dream is this, but at this moment...... It feels like it's at your fingertips!

He immediately knelt down and said reverently: "Woo woo, old decay...... Shame on the old man! Before, it was old and shallow, thanks to the completion of the city lord, the old man must teach the children of the border city well, and die for the city lord! ”