Resisting his shock, Li Jin first took an orthodox historical record to read.

Now he is used to reading from right to left and vertically.

Looking at it, Li Jin found that this world actually had many overlaps with the ancient times in his previous life, but there were more brothers in terms of gender.

Moreover, although the names and taboos of each emperor are different, there is a high probability that the major historical events that occurred are similar.

Li Jin breathed a sigh of relief, and while listening to people around him discuss how important arithmetic is, he picked up another geography book to read.

It turns out that the capital of this era is also Yanjing, and Hongyan Village is in the north of the entire country. If you calculate it according to the map of the previous life, it is probably in the Shaanxi-Gansu area.

Li Jin is actually quite satisfied with the landform here. After all, transportation was not developed in ancient times, and most of the places were dirt roads with potholes, and it was even more muddy when it rained.

If he was in Sichuan, it would take at least three months to go to Yanjing.

Most of the Shaanxi-Gansu generation is a plain, and it is connected to the Wei River, so the transportation is relatively convenient.

After Li Jin understood what he wanted to know, he read Nine Chapters of Arithmetic, and only went out when he felt hungry.

The boss of the book shop saw many such foreign students, but he didn't buy a single book after reading for a day. He was not annoyed, and smiled as he watched the students leave.

Anyway, they will come to buy arithmetic books in two days.

Now whoever is stingy with money and refuses to buy it will wait for his fame to go down in Sun Shan.

As long as you are a discerning person, you will definitely buy it after considering it.

When Li Jin returned to the inn, Chen Xiran had already renewed the lease for the three of them, and it only cost [-] Wen to renew the lease during the day, which was a little bit of savings.

After seeing Li Jin, Chen Xiran hurriedly ordered food, and said, "I'm going to faint from hunger, Ah Jin, did you gain something from this trip?"

Li Jin looked at him and calmly said two words: "Arithmetic."

Chen Xiran was about to jump up from the stool in the next second, and he lowered his voice: "Is it really possible to take an arithmetic test? I thought that group of people in the teahouse framed me!"

Li Jin said: "Nearly half of the books on the imperial examination in the bookstore are about arithmetic, so there should be no difference."

He paused and continued: "Before the curfew, let's go buy books first. There are about 90 candidates who came to register today. The registration period is five days, and at least 500 people will take the county exam.

There are not enough arithmetic books in our town, and I am worried that the books in the county will be sold out soon. "

Chen Xiran could only follow Li Jin to speed up his meal, and then went to buy books.

At this time, don't block the luck of the [-]% who don't know how to do arithmetic.

Seeing this young and handsome boy come back again, the shopkeeper of the book store asked, "Do you two want to buy books?"

Li Jin said: "Yes, may I ask the shopkeeper, which arithmetic books cover a wide range of topics and are suitable for beginners?"

The shopkeeper said: "Since you asked so, I won't lie to you."

He turned around and went to the bookshelf to get three books, "These three are introductory books on arithmetic, and this one was compiled on the advice of our magistrate. Now that there is not much time left for the county exam, it is not easy to acquire one.

Let me quietly reveal to you that the books I have here are all prepared by the master of the yamen the day before yesterday. "

The day before yesterday... that is, two days ago.

Li Jin thought, it meant that the students in the county only recently learned that they had to take the math test, so everyone was on the same starting point.

Hearing this, Li Jin no longer hesitated, and picked out a book with the widest coverage, and the other was edited by the magistrate.A book of [-] Wen, it cost him [-] Wen in total.

In any case, the magistrate's face must be given, maybe the county magistrate will also study the magistrate's books before writing a question.

Otherwise this book would not be here.

Chen Xiran didn't have this concern, and bought all three copies at once.

Li Jin said, "You can't finish watching."

Chen Xiran: "I'll just buy peace of mind!"

Chen Xiran also wanted to buy the last copy for Li Jinye, but Li Jin waved his hand and refused, "The content is the same."

It's just an introductory book, and you really don't need too many.

Furthermore, as a medical student, he has studied advanced mathematics, linear algebra, medical statistics, etc. for so many years, and he still has a solid foundation.

Besides, this kind of introductory arithmetic exercises, in fact, Mr. Song has also talked about it before.After all, arithmetic is also part of the imperial examination.

It's a pity that Mr. Song said before: "I haven't taken the math test for so many years, and you probably won't take the test this time. You just need to understand these things."

Mr. Song said before that the most difficult problem is probably the chicken and rabbit in the same cage, but the description of the topic is relatively obscure, so you need to read it several times to avoid misunderstanding the meaning.

But Li Jin felt that if he really passed the math test in the county test, he might have something to do with industry.

The prefect's book lists some basic arithmetic to solve the purchasing problems in life.Of course, if it involves the Ministry of Industry and the Ministry of Households, the calculation will be even more esoteric.

This is no longer pure mathematics, and the word "application" should be added in front of it to become "applied mathematics".

On the second day, Li Jin and Chen Xiran went to the book store together, and sure enough, everyone who came was snapping up books.

And the book edited by the shopkeeper recommended by the magistrate yesterday is already out of stock.

Huang Yiling was sweating profusely from running in the winter: "We just signed up one day late, why are the books gone!"

Zhou Qi already showed bitterness: "Without that book, we would have failed the exam this time."

Huang Yiling said: "No, no, let's go to the shopkeepers of various bookstores separately, or else we will pay a high price of three taels of silver to buy the manuscript of arithmetic."

Xu Zifan said: "Money is not a problem, but I am afraid that other candidates will regard us as competitors, and they will not let us copy no matter how much money they give."

"Such an arrangement is simply unreasonable. It took five days to sign up. We are only on the second day. Why can't we even buy books!"

Huang Yiling squatted helplessly on the side of the road, "Then those who sign up in the next few days don't even know that they have to take the math test!"

Hearing what he said, both Zhou Qi and Xu Zifan showed despair in their eyes.

Although they knew that they had to take the mathematics test, the book compiled by the magistrate was the most important thing!If you can't buy a book, you might as well not know it.

Chen Xiran watched a group of students running towards them, and then ran away in a hurry after asking, feeling suddenly afraid.

If Li Jin hadn't brought him to buy books yesterday, the state of these people today might be a true reflection of the two of them.

Chen Xiran said: "Ah Jin is still considerate."

Li Jin sighed, and said, "I didn't come here to see the excitement today. Some of the bookshelves of the "Four Books" and "Five Classics" were recommended by the county magistrate or the magistrate. There are too many books, and even if you buy them, you won't be able to read them.

Take advantage of today to write down the important knowledge points, and go back to write it silently. "

This is not Li Jin's unpredictable prophet, but after he bought the arithmetic book issued by the magistrate last night, he found a small seal on the back of the book.

He looked carefully at the candlelight, only to find that it was the prefect's seal.

Yesterday, Li Jin saw many books with this seal, so he came up with this plan.

Mr. Song has explained the annotations of each book in great detail. Looking at these books with seals now, it is tantamount to 'betting on the question' and 'guessing the question'.

So Li Jin didn't suggest that Chen Xiran buy the book directly.

You just need to review the knowledge points that you have obtained, and don't make mistakes like "sister I think about it" when you pass the test.

Chen Xiran has a good memory. Hearing this, although he didn't want to read the book, he knew that Li Jin alone couldn't remember it.So he and Li Jin divided the labor and cooperated.

A little while before the curfew, Li Jincai and Chen Xiran came out of the inner city.

They were leaving tomorrow, and the two of them hadn't even visited the four main streets, eight small streets, or even all kinds of shops in the county town, and spent all day in bookshops.

Chen Xiran felt a little melancholy, looked up at the bright moon, "The exam is really difficult."

After reading the book for a day, Li Jin also felt dizzy. He didn't like to say words of encouragement, so he just walked quietly under the moonlight.

Chen Xiran suddenly changed the subject: "I heard someone singing."

Li Jin was silent, thinking about going to the brothel at this moment?

Li Jin said: "Tomorrow we have to take a whole day's car ride back, so let's have a good rest today."

In the end, Chen Xiran was just talking, he knew what was more important, and with Li Jin, such a self-disciplined person by his side, he wouldn't make a big death.

Li Jin went back to take a bath, but Chen Xiran planned to sleep without taking a bath because Li Jin stopped him from going to the brothel today.

The master who drives the car is also considered an old man of the Chen family. He grew up watching Chen Xiran, so he completely followed the wishes of his young master, and didn't even prepare water for washing his feet.

After Chen Xiran took off his shoes, he thought about it, worried that he would be disgusted by taking off his shoes with Li Jin tomorrow to keep warm, so he obediently went downstairs to take a shower.

Li Jin also went to take a bath, he didn't worry about the exam, he had already done his best, and all he had to do was to obey fate.

Instead, he planned in his mind to save more money and buy a bathtub to go back another day.

But the problem is that the house is not big enough.Li Jin doesn't want to buy a house recently, it's too expensive to afford.

I had saved 11 taels of silver before, and for more than three months, the family's food, oil and salt, bamboo leaf paper and raw edge paper for writing, and occasional snacks, all spent one tael.

This time, it will cost one tael of silver to go back and forth to sign up for the county test and buy books.

Next month's exam, if there are five exams, that is five days, he has to come at least one day in advance, so it will cost at least two taels more.

It is still far from the 30 taels to buy a house.

In fact, when it comes to making money, Li Jin thinks it would be much better to live in the county town.

He can copy books for bookshops, and a book sells for 120 Wen, and it costs [-] Wen to copy a book.

The books at this time were thin, and Li Jin could finish copying them in a day.

But there is a very practical problem right now, that is, houses in county towns are more expensive.

Li Jin never expected that one day she would worry about buying a house.

Early the next morning, Li Jin practiced calligraphy and silent reading after washing up, but Chen Xiran hadn't woken up yet.

It seemed that spending the whole day at the bookstore hit him hard yesterday. Li Jin was planning to go out for breakfast first, but he happened to meet the driver.

He asked, "Master, when are we leaving today?"

"It can be later, the snow has cleared, and the road is easy to walk, just check out and leave at Sishi."

Li Jin said, "Then I'll go for a stroll in the inner city and come back before Si time."

"all good."

In fact, he didn't have anything in particular he wanted, but he just wanted to buy some gadgets for the boy and the little bun.I don't know if the little brat who would laugh very happily when he saw his father talking to him these days missed his father.

But Li Jin already missed them in his heart.

He thought, he had to wait until Sishi, and it would be nice to find interesting gadgets.

Bring back gifts for his two cubs.

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