Training Tai Sui

This time, Qin Feng didn't have to wait too long, Wei Zheng said excitedly: "Teacher, this disciple should get back [-] Wen."

"That's right." Qin Feng said with a look of relief: "This is the benefit of this number. If you don't understand, you don't even know how to buy corn, and you don't know how to be deceived by others. If you are such a person, if you become a Officer, if the imperial court asks you to calculate the annual grain tax, or the grain and grass for disaster relief, what should you do if you make a mistake?"

"For an official, this may not be important, and it is wrong, but for those victims who are starving for food, a stone or a bucket of food may cause several people to starve to death. Do you think this number is important? "

Wei Zheng took it seriously and said: "What the teacher taught is that the disciple failed to understand the painstaking efforts of the teacher, and the disciple knew that he was wrong."

Being a teacher is so cool!

The expression on Qin Feng's face remained unchanged, but in his heart he felt that he was really too powerful.

"Brother Ziyu, can my younger brother come in?"

Yang Ying?Why is this kid here again?

Qin Feng was a little stunned and said: "Please come in."

The door was pushed open, and Yang Ying slipped in familiarly. After seeing Wei Zheng and the books on the small case with a low eyebrow, she smiled and said, "Brother Ziyu, I wonder if I can let my younger brother listen to it too?"

Why are there still people rushing to apprentice?

Qin Feng was a little puzzled. He took a lot of effort when he recruited Wei Zheng. He hadn't taught him for a few days, so why did he need another apprentice?

Forget it, one is to teach, and the other is to chase away. If you have too many debts, don't worry about it. Don't you worry about having one more disciple?

"Master can teach without discrimination. Although I don't dare to compare with Master, if you can listen to me, then it's fine for me to accept you as a disciple."

Before Yang Ying could speak, a big man came in from outside the door. The gentleman looked around the study vigilantly, and after confirming that there was no danger, he handed the things in his hand to Yang Ying, and said, "Master, this is your thing. "

Yang Ying waved the big man out, and then said: "Brother Ziyu, this is the authentic work of Zhong Yuanchang at the end of the Han Dynasty, and it is my younger brother's apprenticeship ceremony."

What the hell!

It's unusual for a child from an aristocratic family to casually send out Zhong Yuanchang's original work?

Zhong Yuanchang is Zhong Yao, the great calligrapher of the Three Kingdoms period. If Qin Feng’s memory is correct, this Zhong Yao will be honored as the originator of regular script by later generations. Together with Wang Xizhi, they are called "Zhong Wang".

If the name can be ranked ahead of Wang Xizhi, how much will it cost if this word is put in later generations?Just based on this painting, even ten of his Qin family villages would not be able to be exchanged.

Wei Zheng looked stubbornly at Yang Ying, who was sitting next to him, dressed in rich and noble clothes, his face turned red, as if he was ashamed for not presenting the ceremony of apprenticeship.

Qin Feng looked at the words, even though he didn't have any appreciation ability, he still felt that there was no problem with using this thing as a family heirloom.

But apprentices...

"Cough!" With a dry cough, Qin Feng put away the words, and said, "Aying, you are a child of a family, and there must be no shortage of famous teachers. I dare not teach. You and I learn from each other."

This guy is not suddenly humble, he is afraid that if he teaches Yang Ying these miscellaneous knowledge, Hongnong Yang's family will send people to call him, or directly demolish his Qinjiazhuang, so he simply doesn't say anything about recruiting apprentices, Just talk about learning from each other.

So the number of students increased to two, but fortunately Wei Zheng is also a new learner, so it doesn't hurt to say it again.

"This...isn't it a big food number?"

Seeing Qin Feng's proficient writing of Arabic numerals, Yang Ying was a little confused, and then raised her own questions.

And Qin Feng also knows that Dashi is the ancient name of Arabia, and in this era, there are frequent internal and external exchanges. In the Tang Dynasty, it had the reputation of all nations coming to court, so it is not surprising that Yang Ying knew this thing.

"That's right. In my opinion, this method of counting is simpler and more direct. I think the Sui Dynasty should promote this method of writing. It is a good thing for both the court and the people."

Then Qin Feng taught them addition and subtraction, and how to use formulas to calculate.

This is actually not difficult. Wei Zheng and Yang Ying are both smart people. If no one gives advice, maybe they would never think of this method in their lifetime, but Qin Feng only needs a little bit, and they have successfully touched the door.

"I'll teach you multiplication and division tomorrow."

Qin Feng didn't ask Yang Ying how he knew he was teaching Wei Zheng, but just assigned some homework and asked them to come back tomorrow.

In the evening, it was still the spacious and bright study room in Daxing City, where Yang Ying handed over her homework to Teacher Su.As a result, that Master Su looked at it blankly, a little confused.

After Yang Ying explained briefly, Master Su sighed: "There are many merchants from various countries in Daxing City, and I have also had contact with merchants from Dashi. This number is indeed owned by them, but this symbol... I dare to say that it is absolutely not Great cannibal."

Yang Ying's heart skipped a beat, and she asked, "Master Su, you mean these symbols were figured out by brother Ziyu himself?"

A few tallow candles illuminated the study brightly, and Yang Ying could clearly see the confusion and disbelief on Master Su's face.

"This method of calculation... is brilliant, very clever!" Master Su reluctantly said: "If the Ministry of Civil Affairs can use this method, it will save countless efforts, but this number also has shortcomings. I will go later, my lord. You might as well ask Qin Ziyu."

"Oh?" Yang Ying immediately became interested when she heard the words, and asked, "Master Su, what is the shortcoming?"

Master Su didn't answer, just picked up a pen, wrote a 3 on a blank piece of paper, and then added another stroke to make it an 8, and then said: "If the imperial court uses this number, there will inevitably be corrupt officials." The dirty officials are doing their best to enrich their own pockets. Just like me, I just need to add a sum at will. If I only need 3 taels, this sum can add 5 taels. This kind of corruption is really terrible and must be avoided. Defend."

Yang Ying nodded and said, "That's true, Master Su."

Master Su shook his head and said, "It's a great talent. It's easy to pick people's faults, but it's extremely difficult to create knowledge."

"Everyone in the world knows that Qin Ziyu is a dude, ignorant and incompetent. Looking at it now, this person's skill is amazing, it can be called..."

"Genius?"

Master Su didn't answer, but just sighed and said: "With this ability, he came to the Ministry of Civil Affairs. The servant dare not say that a doctor is completely worthy. It's a pity that Qin Yi was dismissed, he..."

Chapter 24 Farewell

"What is 21 plus 120 five?"

In the study, Qin Feng held the pointer in his right hand, tapped his left hand back and forth lightly, and looked at Wei Zheng and Yang Ying sitting in front of him with some malicious intentions.He seemed to be expecting that the two of them would not be able to answer, so that he could show off his glory as a teacher.

Will the children of this aristocratic family feel better when fighting than a poor boy like Wei Zheng?

Wei Zheng said confidently, "Master, it's 140 six."

Qin Feng frowned, turned his head and continued to ask: "Then how much is 47 plus 320?"

Since Wei Zheng had no flaws, Qin Feng decisively shifted his gaze away. Anyway, beating this little bastard is a bit tired these two days, but Yang Ying has a delicate skin and tender flesh, so he should feel better when beating him.

In fact, Qin Feng doesn't know much about teaching, but it should be similar to raising pigs in an orphanage in his previous life.

Yang Ying raised her eyes and peeked at Qin Feng, and found that Qin Feng was looking at her with a wicked smile, and the pointer waving up and down in his hand gave him great pressure.

"What are you peeking at, answer quickly, I'll count to three, if you can't answer...hehe."

Cold sweat flowed down Yang Ying's forehead. To be honest, he had met countless teachers, but it was the first time for Qin Feng, who waited for students to fail to answer questions, and then had a good time. .

"One...two..."

Qin Feng's gloomy voice rang in his ears, like a talisman, recalling the scene of Wei Zheng being beaten by Qin Feng a few days ago... A chill flashed in Yang Ying's heart, and she quickly gave up her plan to hide her clumsiness.

"370 five."