Mixing ancient times with Taobao

Chapter 273
"That's not necessary to learn the barbarian's method."

"Since it's easy to use, why don't you learn it? Look at this..."

Zuo Fu opened the book, "This is called Arabic numerals."

She took out a ballpoint pen and wrote a set of Chinese characters under the book, "Come on, tell me, what is the sum of these numbers?"

88+32, 67+21, 77+88, things that elementary school students of later generations can calculate mentally, but people who are proficient in mathematics in this era have to do calculations for a while.

"120, 88, 165."

Before a few people started counting, Zuo Fu reported the result.

Chang Kun refused to accept it, and said, "You must have calculated it early."

"Okay, then you go out."

"130 six plus seven seven."

"213."

"99 plus 99."

Zuo Fu laughed loudly, "198."

The ultra-fast mental calculation speed stunned everyone, Chang Kun blushed, and said: "There are 648 shi of rice, 532 shi are transported away, how much is left?"

Zuo Fu smiled and said, "116."

There is no sound now.

In fact, these questions are not difficult. Ancient Chinese mathematics is quite awesome.But the problem is that Zuo Fu can calculate such a simple arithmetic at such a fast speed, this is what makes them feel unbelievable.

"This, how is this possible..."

A slightly older technical old dog shook his head repeatedly, "If there is an abacus, this old man can calculate so quickly. But, yes, but you will have the answer immediately after listening to it. Is this number really so magical?"

"Use this number and this symbol..."

Ren Ning, who was silent for a while, pointed to the notes on the textbook and said, "It's more intuitive and easier to convert."

He looked at Zuofu, and said: "But I think you can calculate so fast, you should not only use these numbers and symbols, but also other tricks?"

Zuofu nodded, "I have a few students who have been studying with me for a long time, and they can calculate such a topic so quickly. As for the method..."

Zuo Fu pursed his lips and smiled, "If you are interested, you can come to my class at night in the future. I will definitely not hold back."

"Why can't you use ink for this pen?"

Ren Ning's eyes fell on the ballpoint pen again, "How did you do this?"

"I know you have a lot of questions, but I can't answer many of them before you study. It just so happens that these days there are many talented people from other places who are like me, and my school is about to be built, and I will hold a few special classes , let’s go to class together, and I’ll start from the most basic.”

Ren Ning got up, and suddenly stretched out his hands to bow, and said: "Master Zuo is willing to teach you with all his money, he is a model teacher, please accept my respect from Ren Changle."

When everyone tested Zuo Fu, Ren Ning had already flipped through the textbook quickly.Although some places are hard to understand, some things can be understood.

Those who can compile such mathematics textbooks no longer need to test other deeper things.Her level is very high, far above her own.No, maybe looking at the whole world, she is also the most powerful one, which is already at everyone's level!
Now that she is willing to teach them, no matter what, she must perform the disciple ceremony once, otherwise it will appear that she is too rude to wait for others.

"I thank Master Ren on behalf of the people."

Zuo Fu also bowed back, "If we work together to learn this thing thoroughly, I think we will be able to see the Datong described by the sage!"

Just as the distance between Zuo Fu and Ren Ning and the others drew closer, the squires slapped themselves.

"I regret not listening to Zuo Yunshu's words!"

A squire repeatedly slapped himself in the face, "Two hundred acres of land, 16 catties, my God! This is the output of one hectare of land! I have to give my grandfather a face, when the weather is good! Ouch!" , Ouch, the old man's heart is bleeding, my God! How much money has been lost!"

"Brother Zhang, you, stop talking!"

Another squire also slapped himself severely, and said without tears: "I, I'm going to kneel in the ancestral hall now, and the elders of the clan called me a pig, a fool, and said I was a prodigal! Is it heartache? My heart, liver, spleen, lungs and kidneys are hurting! Ouch, my god! It can really produce more than 800 per mu, and some have more than 1000. Oh my god! It hurts me, it hurts me too! I want to plant this , how much does that cost?!"

"Oh, I, I just said that we were a little too cautious at the beginning. Master Zuo's rectification of Li Fan was scary, but we followed her rules, didn't she come to make things difficult for us? I think last time, she was a little Not happy anymore.

You don’t know, I inquired and found that several villages have grown this high-yield rice. Mr. Zuo was so happy, he went to the countryside to teach them how to grow high-yield rice, and sold them a batch of fish fry at a very low price. Ducklings, teach them how to grow rice and raise fish and ducks in an acre of land.

Ouch, didn't you see it?I pretended to be a passer-by and went in to have a look, those mud legs really dare to do it!Each family put fish in the paddy fields, and put more than a dozen ducks in each mu of land, and built a duck house on the land bank, which is a neat one!
This time, Xia Harvest made those mud-legged people very excited!If you have two or three acres of land at home, you can be full now!Not to mention that each mu of land can produce a hundred catties of fish and more than a dozen ducks, which can be sold for another sum of money.And I heard people say that in order to prevent the farmers from being hurt by the low price of grain, Zuofu promised to buy their grain in cash.Those fish and ducks, she wants to..."

"Oh, don't talk about it, my heart aches! Let's go, go to Ruihetai to buy the best dim sum and send it to Mr. Zuo! This high-yield rice cannot be reserved for planting, we have to establish a good relationship, this year There is still one more season to plant!"

"Yes, yes, yes, and more! As for the potatoes, I heard that the yield per mu is more than 2000 catties! My god! I heard that there are still some days left, and there are still sweet potatoes that can be harvested. The nephew who works in the yamen said, Mr. Zuo estimates that it can produce more than four thousand catties per mu!"

"what!"

A few squires screamed, "Why didn't you say such an important thing earlier?! Go, go! It's over if you're late! Master Zuo must be a fairy! This, this god in the sky! Let's go and pray to God!" Plant it!"

A group of country gentry got into the carriage and let the servants push the cart. Feeling Ruihetai, after a while of shopping, they piled up several carts of gifts, found a singing troupe, and came to the yamen with a bang.

High-yield rice yields [-] jins per mu, Mr. Zuo has done a lot of good deeds, as a local gentry, I want to thank you, don't I?

The people also followed behind to see the excitement.When they found out what was going on, they were also crazy.

Eight hundred catties of rice? !
More than 2000 catties of potatoes? !

More than 4000 catties of sweet potatoes? !

God!
Is this a dream, or is it a dream? !

Thinking of the ultra-cheap polished rice in Huimin Supermarket, a group of city people couldn't stay idle anymore, and they flocked to the yamen after the gentry, wanting to see if it was true or not.

But the result disappointed them.

Mr. Zuo was not in the yamen, Mr. Zuo took a group of officials from Nanjing to the countryside to watch the fish.

As for why a group of officials want to go to see the fish...

After being explained by the people in the yamen, there was chaos in front of the yamen.

"You, you, how much did you say?"

Master Zhang's body trembled, and tremblingly said: "Estimated, three to thirty thousand catties, per, per mu?"

"Yes, this is my old man's conservative estimate."

"Oh my god!"

The master of the Zhang family screamed, "Master Zuo asked me about this back then!"

After yelling, he rolled his eyes and fainted.

"Master Zhang, master Zhang!"

Everyone panicked and supported the old man. After strangling him several times, the old man slowly woke up.

He opened his eyes and stared in a daze for a while, suddenly, two lines of tears fell, and he seemed to be insane, "Money, money, it's all money... the cheapest fresh fish, at least ten cents a piece, Even if it’s sold at a low price, with five cents a piece and an yield of [-] catties per mu, then, how much would that be?”

His lips were trembling, he was silent for a while, then suddenly he beat his chest and cried loudly, "I regret not listening to Zuo Yunshu's words!"

There are many rains and lakes in the south of the Yangtze River. Fish is not a rare thing, and the price cannot be compared with meat.But even so, it was not easy for people at that time to eat a fresh fish.

The fishing techniques at this time were very primitive, and the fishing tools were also poor. It is the most primitive fishing method in the early years and the world's desire for fresh fish.

With the development of the times, although there is the technology of digging ponds to raise fish, the so-called technology of digging ponds to raise fish is really just digging ponds to raise fish without technology.

Put the fish in the pond, feed some grass, feed some bean dregs, neither try to hatch the fry, nor lead the running water to increase oxygen, so that the survival rate of the fish can be high, so hell!
Therefore, pond fish farming is a high-cost matter, and the fish price will be very expensive!But rich people don't care!Dead fish and smelly fish like that are eaten by mud legs, we want to eat fresh fish!Ever since, the saying that raising fish species is a thousand times more profitable has spread.

Making money by doing this is not something everyone can afford.Although I don't know how much the investment in fish farming in cages is, the data of [-] jin per mu is really amazing!

It takes hundreds of acres, so what kind of land is there to plant? !

Master Zhang's heart is bleeding!
Zuo Fu mentioned this before, but he said it politely, but he didn't take it seriously in his heart.Well, now that the result is out, so many people have heard it, how can this good thing happen to me? !I was perfunctory at the beginning, but now can people not give me small shoes to wear? !
Being supported by the servants into the car, the old man Zhang's face turned ashen.

Looking at it, it seemed that he had aged many years all of a sudden, and he felt like he was about to die.

The other squires were not much better off.

They looked at each other, and after a long time, they stomped their feet again, stretched out their hands, slapped themselves hard, and cried, "What else are you talking about?! Go back and kneel in the ancestral hall! Wait for the clan elders to come forward and see if your lord can do it." Can't spare us!"

"Wait, take the gift back."

The yamen servant stopped them, with a little gloating on his face.

The country gentry and gentlemen who are usually high above themselves slapped themselves. Is there anything more exciting than this?

But although I am happy in my heart, it can't be shown on my face. We are a yamen servant with integrity.

With a serious face, he pointed to the carts and said, "Our adults have rules, and we don't accept any gifts. It's better for Zhu Xiangxian to take the things back, lest the adults come back and punish the younger ones..."

　Three thousand characters! Ha!The update is complete, go to bed, good night everyone!
　　
　
(End of this chapter)