Although Li Jin bends unknowingly, he still retains a straight male aesthetic and is inadvertently sensitive to the bottles and jars that wipe his face.

Even the strong powdery flavor cannot be accepted.

The brothers in the village generally dress relatively plainly, their hair is tied with a ribbon or hairpin, and Li Jin doesn't think there is anything.

But the county is prosperous in the end, and there are even special jewelry shops here.

The shopkeeper yelled at the door: "Objective, do you want to buy some jewelry for your wife or husband? We have bracelets and earrings."

Li Jin didn't want to think about Qin Muwen's head swaying and wearing circles.

He didn't stop, and he went straight ahead and stopped in front of a small wood carving shop.

The ancient carving skills are very exquisite, and Li Jin also has a soft spot for wood carving.

It is a pity that in his last life, many ancient legendary skills disappeared in the long river of history.

He remembered an article called "He Zhou Ji", about a skilled craftsman who used wood with diameter and inch as palaces, utensils, figures, birds and animals.

Before, during the Mid-Autumn Festival, Li Jin gave Qin Muwen a wooden rabbit.

Qin Muwen liked it very much. He had to take it with him every day. Later, Li Jin felt that this thing was getting in the way when the two of them did it, so he asked him to take it off at night and put it on the bedside table.

As soon as Li Jin stepped into this store, he was attracted by a rather thin ribbon.

There were a few beads strung on the ribbon, which seemed unremarkable at first glance, but when you got closer, you could see the micro-engraved pattern on the first bead. It was a rabbit squatting but with ears erected.

I took a closer look. The shape of the little rabbit carved on each bead is different, but each one is very naive.

Qin Muwen is a rabbit, and the whole person is as obedient as the little rabbit.

Li Jin felt that this ribbon really matched his family's husband, so he bought this ribbon directly and spent his overnight accommodation.

After the purchase, Li Jin went out and looked up at the sky, and found that it was not early, so he went straight out of the inner city, ready to return to the inn.

Xiao Baozi doesn't know how to play with toys, so he will bring gifts when he grows up.

Chen Xiran was drinking porridge on the first floor. Seeing Li Jin's lips approaching with a smile, he hurriedly finished the meal and said, "I haven't seen you so happy for a long time, but what good things have I bought?"

Li Jin nodded, "Well, I bought it for my wife."

Since it was bought for Qin Muwen, Chen Xiran was not too hard to ask for it, but sighed with emotion: "Being a relative is different. I was worried that your serious face might scare your husband."

As a result, Li Jin's tenderness and smile were all given to his husband.

Then the two packed up and got into the bullock cart.With the lesson from the coming time, the two simply wrapped themselves in a quilt and leaned in the corner.

Li Jin pulled out the math book from the cage and looked directly at it through the light from the window.

This is very different from the books he learned in his previous life. Formulas are rarely listed directly, and they are basically all written descriptions.

It's no wonder that most students don't like math.

The content of the calculation is obscure enough, and the sentences described in the result are more verbose, and it takes a while to understand the concept.

A bold idea suddenly appeared in Li Jin's mind. If he compiles books according to the enlightenment mathematics of his previous life, he should combine concepts, figures and formula calculations.

Can mathematics be promoted faster?

After all, not everyone has the qualifications to get fame, and it is so difficult for ordinary people to read books.

If the complexity can be simplified and the basic arithmetic can be popularized, then even the banker can learn simple arithmetic and dial abacus, and there will be a few more ways to make a living.

But Li Jin changed his mind. To achieve this, he must first be famous, or else he won’t be able to publish the book, and no one will adopt his suggestions.

Chen Xiran shed sad tears when he saw Li Jin actually started reading in the car, but his hands were cold, so he decided to continue sleeping.

Li Jin also just watched for half an hour, then put down his books and looked at the snow-covered mountains in the distance.

He knew that reading in the car was not good, so he took the initiative to relax after reading a book for a while.

Lunch is the mushroom stewed chicken mixed with rice brought from the inn.

The driver parked the bullock cart at the tea shop on the side of the road and used the fire to heat the rice, which was then presented to Chen Xiran and Li Jin.

The savory flavors of chicken sauce and mushrooms are completely melted into the rice, and then served with half a bowl of osmanthus stuffed.Eating such a meal in the winter makes the whole person warm up.

But because of the late departure today, when I returned to the town, it was completely dark.

Chen Xiran invited Li Jin to stay at his house, but did not let his servants clean up the guest room at night, and slept directly in Chen Xiran's room.

Early the next morning, Li Jin saw Chen Xiran's parents.

Both of them are very friendly, plus Chen Xiran's father has a good relationship with Mr. Song, knowing that Li Jin has taken a lot of pictures of Chen Xiran academically.

"I heard Song Xiucai mentioned you a long time ago, and she really shows talent."

"My uncle is absurd. The boy is uninvited, so he is so disturbing. Please forgive me."

"You and Xi Ran are classmates, how can you be bothered? Don't be polite, just tell Xi Ran if you are not used to it."

"Thank you, uncle."

After breakfast, Li Jin bought bacon and Liuli, and went to Mr. Song's house with Chen Xiran.

Mr. Song called them to the study room and said, "Why did you come back so late? The three students of Huang Xiucai drove back overnight and arrived last morning.

I heard Huang Xiucai say that this year's county test will be arithmetic?"

Li Jin and Chen Xiran hurriedly told what they had learned.

But it also saves the part where Li Jin asked Chen Xiran to "be on the topic" at the end. This is a trick and cannot be publicized.

Mr. Song was taken aback, and his eyebrows were overjoyed when he heard the words: "So, you bought the math book from the prefect?"

Li Jin nodded: "Yes, we signed up on the first day. After hearing the news, we simply bought this book with the idea that we would rather believe it."

Mr. Song: "That's good. You are going to discuss calculations with me today. Transcribe everything you don't understand, and let Da Lang bring it to me after school."

"Yes."

"Nine Chapters of Arithmetic" is one of the most widely circulated arithmetic books, and Mr. Song has talked about this before.

There are a total of 246 practical exercises and solutions, divided into nine chapters, covering a wide range.

The arithmetic book recommended by the owner of the county bookstore is not much different from the "Nine Chapters of Arithmetic". The title is more difficult, the classification is more detailed, and the solutions are more diverse.

But the disadvantage is that the description is more...obscure, even Li Jin has to look at the book against "Nine Chapters of Arithmetic".

Li Jin feels that this is the same as studying in the previous life, step by step, from elementary school to university.

Without "Nine Chapters of Arithmetic" as the basis, it would be difficult to read this book thoroughly.

After school, Li Jin said goodbye to Chen Xiran, and walked towards the village with his bags.

Before reaching the entrance of the village, Li Jin saw a familiar figure. The man was wearing the cotton-padded clothes that Li Jin had before, but his waist and shoulders were slightly smaller.Standing quietly at the entrance of the village.

Li Jin stepped forward quickly, holding Qin Muwen's hand, and it was cold.

He frowned: "Why not at home?"

Qin Muwen said: "Brother Zhuzi came back not long ago. He said he saw you in the town, but you were talking to other people and he was rushing to ship the goods, so he didn't call you.

But when I came back and told me, my wife also said to take the buns to her house to help me watch, I will be here to wait for you."

Hearing what he said was justified and well-founded, Li Jin couldn't do it when he was really angry: "Don't wait like this next time. If you freeze yourself, I will feel distressed."

Qin Muwen's heart jumped suddenly, "Well, I know."

Back home, Qin Muwen carefully raised his head to look at Li Jin's expression, and said, "A Jin, I was wrong, don't be angry."

Li Jin put down the cage and held the person in his arms: "Which eye do you see when I am angry?"

After a pause, he said again, "How did I get angry with you?"

Qin Muwen also hugged Li Jin back, with the milky fragrance of feeding steamed buns on him, soft and sweet.

"A Jin, I miss you."

In the first two years of marriage, before Qin Muwen went to bed every day, his greatest hope was that Li Jin would not go home today.

Because once he comes back, he will have to be beaten, and he cannot cry, or he will be rejected by the villagers.

But everyone in the village is a discerning person. When Qin Muwen went to wash his clothes, he saw the wound on the back of his hand and understood everything.

Qin Muwen never thought that one day he would brave the wind and stand at the entrance of the village, anxiously looking forward to the return of Li Jin.

Villagers passing by will greet him when they see him, "Is Li Jin coming back today?"

Qin Muwen nodded implicitly: "Yeah."

When Li Jin heard this, he was completely satisfied, after all, he had been thinking about Qin Muwen and Xiao Baozi since yesterday.

Li Jin took out the gift he had prepared for the teenager. His eyes lit up and he put it away happily.

Li Jin said: "This is a headband, tied to the hair."

Qin Muwen thought for a while, but put it away first, not willing to use it directly.

Li Jin looked at his solemn appearance, rubbed his head helplessly, and said, "Is there still food at home? Just warm it up."

Qin Muwen then remembered the hot fish porridge in his pot, and shredded radish in cold sauce.

In the winter, the variety of vegetables is not very abundant, but the juvenile’s craftsmanship is good, and the simple side dishes are also very tasty.

The next day, Huang Xiucai's students heard that Li Jin and Chen Xiran had bought books, and they all ran over to ask for them.

Li Jin and Chen Xiran were not stingy and asked them to copy them.

The three people copied a book naturally quickly. When Li Jin left school, they would finish copying and return the book to its original owner.

Originally they wanted to give a thank you gift, but they were declined by Li Jin and Chen Xiran.

"The five of us have mutual protection. Saying thank you is a bonus."

This is because Li Jin did not perform particularly well when Mr. Song talked about "Nine Chapters Arithmetic".

Chen Xiran thought that a practical student like Li Jin was suitable for endorsement and dictation.

But when he randomly asked an arithmetic problem that he didn't understand, Li Jin could explain it to him in no less than two ways.

Mr. Song originally listened outside the window, and planned to explain it himself when they could not discuss the results.

But then, Mr. Song found himself thinking too much.

Li Jin is so talented in mathematics. It didn't take long for him to learn arithmetic, and he was able to draw inferences from one another and learn by analogy!

Mr. Song thought, why would he stand in the cold wind and eavesdrop? Wouldn't it be good to have this time to supervise Da Lang's endorsement?

The expression in Chen Xiran's eyes looking at Li Jin had changed from being surprised at the beginning to very calm.

Well, I accepted my fate.

He picked out the questions he didn't understand all morning, and when Li Jin stopped writing, he consciously presented it on Li Jin's desk.

Then, just listen attentively.