Five-year-old little girl: Mom has thousands of acres of material space

"You woman, you just want Master Jiang to give you rabbits and chickens just by looking at random numbers. Who do you think you are?!"

Several scholars onlookers looked unkind, and after taunting Jiang Wei, they turned to Jiang Yu and said angrily: "Master Jiang, don't talk to such an ignorant woman, let's discuss it first. You came up with this chicken and rabbit in the same cage problem."

Shopkeeper Zhou, who was watching from the side but did not interrupt, also frowned slightly. These people were too uneducated and could not be called scholars.

Jiang Xiaoxiao sighed in her heart. Although the status of women in ancient times was low, she didn't expect this group of people to despise women so much. Very good, let's see how her mother slaps these scholars in the face!
  She stepped forward, deliberately pulled Jiang Wei's sleeve, and said in a soft and sweet voice: "Mom, how did you calculate it? Please teach me. I will be able to solve such problems by myself in the future."

According to her mother's temperament, she was too lazy to talk to this group of people, let alone explain how she calculated how many chickens and rabbits were in the cage, but it would be different if she spoke.

"Calculate?" Jiang Yu tilted his head and said in confusion: "Didn't this little lady guess it but calculated it?"

"Of course, my mother is amazing!" Jiang Xiaoxiao puffed out her chest and glanced sideways at the group of scholars.

Later, I will let you see the "Nine Chapters of Arithmetic" that our country has inherited for thousands of years!
  Jiang Wei looked at Shopkeeper Zhou and said, "Shopkeeper Zhou, please find me a piece of paper and charcoal."

"Go and get my paper and pen." Jiang Yu obviously knew what Jiang Wei was going to do, so he turned to tell Shopkeeper Zhou.

Shopkeeper Zhou turned back to the restaurant and soon took out a piece of rice paper and a writing brush.

Jiang Xiaoxiao glanced twice and paused. The paper and brushes were not cheap. The last time she and her mother went to the study to buy books, they saw exactly the same brushes, which cost twenty taels of silver each.

Of course, there are cheap brushes, and there are also ones that cost five or six hundred cents each, but she didn't expect that Shopkeeper Zhou would bring out such an expensive brush as soon as he picked it up.

The scholars next to me looked jealous. Of course they, who often hang out in the study, knew the price of that writing brush. It was Master Jiang's pen, but they didn't expect it to be used by an outsider, a country woman!
  Jiang Wei took the brush and rice paper. Her original intention was to use charcoal to explain on the straw paper. She didn't expect Master Jiang to be so generous, so she didn't hold back. She turned around and asked Jiang Xiaoxiao: "Xiaoxiao, Master Jiang's In this chicken-and-rabbit-in-a-cage problem, what are the two known conditions?"

Her mother really wanted to teach her this posture, Jiang Xiaoxiao said immediately: "We only know that there are a total of thirty-five chickens and rabbits in the cage, and -"

Before she finished speaking, the scholar next to her interrupted coldly: "There are also ninety-four feet in total."

Huh, they want to see what tricks a woman can do!

The scholars gathered around with some gloating on their faces. They used such expensive paper and pens. If they couldn't give a good explanation, the young master Jiang from Fu'an Trading Company was not a vegetarian!

Seeing this, passers-by also gathered around.

After a while, a lot of people gathered here, almost blocking the street.

Jiang Wei glanced at the scholar who was speaking, but still ignored him. He just picked up his pen and wrote down these two known conditions.

Jiang Xiaoxiao looked at the rice paper specifically. In this era, the Arabic numerals they used in modern times did not exist yet, and the numbers Jiang Wei wrote were also in Chinese characters.

The people watching on the side almost widened their eyes in shock when they saw the beautiful line of calligraphy on the rice paper.

The few scholars, in particular, looked a little ugly.

The country woman they looked down upon was not only literate and able to write, but she also wrote vigorously and powerfully with a calligraphy brush, which was better than any of the other scholars!
  Jiang Wei didn't care what the people around him thought, but looked at Jiang Xiaoxiao and asked: "Xiaoxiao, we already know that there are thirty-five chickens and rabbits, so we can first assume an unknown number, such as the chickens in the cage. Yes..." Before she could finish her words, the scholars spoke in annoyance: "Assume what? If you don't know how to calculate, you can't calculate, and you are making some mysterious assumptions. I think you just relied on guessing for this answer!"

They interrupted the quarrel again and again, and now even Jiang Wei's face looked a little sullen.

Seeing this, Jiang Yu's face became cold, and he said in a calm voice: "My dear friends, if you can't stand it, please leave. If you embarrass my problem solver again, don't blame Jiang for embarrassing you."

After he finished speaking, the expressions of several scholars were embarrassed. They did not expect that the young master of the Jiang family would actually speak for a country woman.

In addition to being angry, I was also confused.

But fortunately, several people calmed down and did not interrupt again.

Jiang Yu then said: "Little lady, you continue."

Jiang Wei looked back at the paper, drew a symbol with his pen, and said, "Xiaoxiao, let's assume that this symbol represents a chicken in a cage. Then tell me, how many rabbits are there in the cage?"

The people around me had questions on their faces, what is the symbol of this "X"?

Jiang Xiaoxiao suppressed laughter in her heart, but said with a serious face: "The number of rabbits is thirty-five minus this symbol, right?"

"That's right." Jiang Wei nodded with satisfaction, then picked up a pen to write on the paper, and then asked: "Then I'll ask you another question, how many legs does a rabbit have, and how many legs does a chicken have?"

Jiang Xiaoxiao answered readily: "Rabbits have four legs, chickens have two legs!"

It seems that her mother-in-law is really teaching her attentively, teaching her how to solve this problem of chicken and rabbit in the same cage through step-by-step guidance.

"So, we can come up with a formula..."

Jiang Wei continued to write and drew an equation on the rice paper. The number of rabbits was multiplied by four, and the number of chickens was multiplied by two. The sum of the two equals the total number of feet, ninety-four...

For a moment, everyone watching was silent.

Everyone stared at the calligraphy and formulas on the rice paper. Some had not yet reacted, while others were already deep in thought and began to understand what Jiang Wei just said. Not to mention, it could be calculated using this formula. Number of chickens and rabbits.

Jiang Xiaoxiao looked at the faces of the people around him calmly. In this era, there was no such method of formulating to solve mathematical problems. It was also the first time for these people to come into contact with it. I am afraid they were quite shocked.

Only Jiang Yu stepped forward with a bright face, squatting in front of the rice paper with Jiang Xiaoxiao without any pretense, his eyes full of surprise and joy: "Then how do you solve this unknown number like Chacha?"

This formula still seems too complicated.

Although the most basic addition, subtraction, multiplication and division have appeared in this era, these people still don't know how to deal with overly complicated formulas.

(End of this chapter)