My plug-in is a fairy grass

Chapter 18 A Math Problem
Yang Zhen put on a casual look, slowly moved to the side of the girl, and tilted her head to see what she wrote.Wherever he looked, he could see the girl's small face as crystal clear as jade.The girl rested her chin in one hand, while writing and drawing on a large piece of paper with the other hand, her brows were slightly frowned, and she looked very delicate and cute.

If you look carefully, you can see that many line segments have been drawn on the paper.The girl circled the line segment with a pen and muttered some numbers.

Yang Zhen looked at it for a while, and suddenly felt a quiet and moving fragrance, and turned her head involuntarily.But the young woman also came over, looking at him with a little doubt in her eyes.

This woman's eyebrows are picturesque, her skin is snow-like, and her head is curled up high, making her slender and slim.Yang Zhen couldn't help praising secretly, even in his previous life, he rarely saw such a beautiful woman.

Yang Zhen quickly adjusted her mentality, acted like a child eager to try, and smiled sweetly at the woman:
"Auntie, what homework did this sister do? Can I try it?"

……

Yang Zhen's behavior can be said to be very reckless.

This is a hierarchical society similar to ancient China.This woman's identity is obviously unusual, and she belongs to a high-ranking figure.A "servant" like Yang Zhen should behave well in front of her and keep her duty.

In other words, you don't even have the right to speak in front of her without her permission.

But ever since she found out that the middle-aged woman was a fairy, Yang Zhen had a vague idea.He just wants to express himself well in front of these women.

He has a feeling that this is his chance.

As for why, Yang Zhen hasn't fully figured it out yet.

This may be an adventure, and there may be unmanageable consequences because of "colliding" with noble people.But after Yang Zhen analyzed it, she thought it was totally worth trying.

First of all, the identities of these people on the field should be mother, daughter and servants.The words and deeds just now proved that they are not the kind of moody and hostile people.

Furthermore, from what he has seen and heard in the past few days, Yang Zhen understands that the world he lives in is a well-ordered society, that is to say, there are rules on the surface.

Therefore, as a child, as long as he doesn't do anything too outrageous, even if his words offend or displease them, there shouldn't be any serious consequences, at most he will be scolded.

For Yang Zhen, who was no different from a beggar at this time, this kind of punishment was nothing at all.

Therefore, there may be unexpected gains if you do well, and there is no risk if you do poorly.

That being the case, why not give it a try?

……

The woman was slightly taken aback.She took a serious look at Yang Zhen, and found that he had clear eyes, a smile on his mouth, and he did not evade her scrutiny, so she couldn't help being even more surprised.

"Then you have a try." The woman's clear and pleasant voice sounded, "If you can do it, I will reward you here."

After the woman finished speaking, she looked at the middle-aged woman.The woman walked up to Yang Zhen, smiled and took out a piece of paper and handed it to him.

Yang Zhen took a look and saw a few lines of handwriting appearing on the neat white paper.Although it is in classical Chinese, the topic is not difficult to understand.

The general content is: "There is a merchant in Xuanyang County who bought [-] pieces of Xuanyang wood and sold them to Zhoucheng. He hired a car, and he could ship [-] pieces at a time. Burn a piece of Xuanyang wood to keep warm. There is a distance of two thousand miles from Zhoucheng to Xuanyang, ask the merchant how to transport the goods, and how much Xuanyang wood will be transported to Zhoucheng in the end?"

He asked again: "Xuanyang wood is sold for one silver coin per root, and each root in Zhoucheng is sold for ten silver coins. I ask the merchant whether he has made a profit or lost a loss. What is the difference?"

Isn't this the math problem of elephants eating bananas?This question is difficult to say, easy to say, even if it is used as a college entrance examination question, it is still qualified.Yang Zhen glanced at the girl, she looked about eight or nine years old, and she was probably in the third grade of elementary school in her previous life.If you can solve this problem at this age, you can definitely be regarded as a child prodigy.

Yang Zhen remained calm, pretending that it was the first time she saw this question.After thinking for a while, he asked for a pen and paper, and soon the woman brought a large piece of white paper, and a wooden stick that looked similar to a pencil in the previous life. There are pictures on it, and the handwriting is very clear.

Seeing that Yang Zhen actually started to solve the problem, the girl was also curious, and looked at the boy in front of her with big star-like eyes.Yang Zhen secretly made a face at her, and the girl immediately widened her eyes and looked at him fiercely.

Yang Zhen was so happy in her heart that she pulled herself together and wrote on the paper:
2000/9+2000/7+2000/5+2000/3=1574（根）（注：第一个除法往上取整数，即223这个数，之后除法往下取整数。）
He calculated the answer, and there were 1574 left, earning 5740 silver coins.It took less than a minute from start to finish.

Yang Zhen raised her head and found that women and girls were looking at him with surprise in their eyes.

"Auntie, the answer is out, I don't know if it's right."

With the ability of a woman, of course she could see that Yang Zhen had finished.But she still came over, picked up Yang Zhen's answer paper, glanced at it, and handed it to the woman.

The woman took it curiously, looked at it carefully for a while, pointed to the symbols on it and asked one by one:
"what is this?"

"This is a number, this is one, this is two..."

"Why do you write it like this, just write one or two...is there any difference?"

"This will allow for better calculations. Look here, this is called a division formula, and it will be very convenient and simple to write it in numbers..."

……

Yang Zhen took her time and answered the woman's questions one by one.

After knowing these numbers, the woman looked at the answer written by Yang Zhen, and was even more surprised: she did it right in such a short time, what a cleverness!Where did this doll learn this knowledge?
"Who did you learn from?" the woman asked.

"I...I don't know!"

Yang Zhen replied hesitantly.But I am very satisfied with my performance in my heart: I finally got to the point, keep asking me, as long as I keep asking, I can tell the revised experience... and then take the opportunity to make a request, my performance will be considered a success half!
As for the other half, of course it is on the woman's side, depending on how she responds to her request.

Just when Yang Zhen was secretly delighted that the progress was going well, a very impatient child's voice sounded:
"Mother, Mama, I want to eat!"

It was the little loli who raised eyebrows at Yang Zhen.

"Yue'er wants to eat? Have you finished your homework?" The woman turned her head to look at the girl with a soft voice.

"Of course it's done, I've heard you talk for a long time!" The girl pouted and handed the manuscript to A Niang: "Mother, look, Yue'er's answer has already been written here, and you ignore me... …Humph!"

There was a little crying in the voice.

The woman glanced at the answer, and immediately smiled, obviously the girl did the right thing.So he quickly coaxed her:
"Okay, my Yue'er is really talented, I will teach my mother how to make it later. Let's go to dinner first and try the famous dish of Daguanlou."

After finishing speaking, the woman took the girl's hand and went to the square table, and the nanny followed, and the three of them sat down.

……

Leaving behind Yang Zhen, who had held back her stomach and hadn't started to speak, was in a mess...

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(End of this chapter)