In this way, when Dr. Yan finally felt that he seemed to have figured out some doorways, Li Bai suddenly pushed the abacus, picked up the pen and wrote the last line of numbers in traditional Chinese on rice paper, stood up, stretched hard, and then said to Dr. Yan, who was frowning and thinking about it next to him: "It's over, I wonder if Dr. Yan wants to calculate it again?" ”

It didn't even take an hour before and after, and at most it was only half an hour, which was ......

Dr. Yan glanced at Li Bai deeply, and did not answer, but the account book on the board, read it carefully line by line, and Li Bai recorded all the calculation processes on it, clearly and clearly.

I have to say that Li Bai is still a little perceptive, and he has practiced calligraphy hard along the way, although he can't talk about how beautiful the writing is, but at least it's not so ugly that people will criticize it.

Or the main thing is that there is actually some foundation, although the brush is not good, but the pen is very beautiful...... In addition, there is still a little bit of appreciation, so the progress is quite obvious.

Of course, for Dr. Yan, he doesn't have time to pay attention to whether Li Bai's words are beautiful or ugly, these are not important to him, for a professional who is obsessed with and specializes in arithmetic, the method and result of this calculation are the most important.

With just a few numbers carefully calculated in his mind, Dr. Yan was probably able to determine that this account ...... Eighty percent is no problem. Of course, if you really want to check the calculation, you still need to cooperate with the calculation chip to check it carefully, but at this time, Dr. Yan only felt itchy when he looked at the ugly and strange abacus, where could he care about spending half a day to test the calculation results?

"Yan has a question I want to ask this son, I don't know if this artifact can be called?" Dr. Yan put down the account in his hand, pointed to the simple abacus placed in front of the table, and asked very respectfully.

The standard front and back are respectful, and even the title of the kid has been directly upgraded to the son, only Zhang Jiazhen and Master Cen on the side are secretly speechless.

For these laymen, they can probably only watch the excitement. For the time being, I don't have the surprised emotions in the heart of Dr. Yan, an insider, at most, I think this guy is very miscellaneous.

It's just that seeing Dr. Yan's style at this time, I finally vaguely feel that this guy seems to have made something great again.

However, Li Bai didn't answer, just picked up the big girl with one hand, looked at Dr. Yan, and pouted at the girl who was lying in his arms and blinking her eyes.

"Ahem!" Dr. Yan thought about it, and finally blushed, so in front of the two witnesses, he bowed deeply with his hands together: "It was indeed the old man who was anxious to find out the account just now, and he looked at it. In a hurry, the words are not inferior, please this ...... Well...... This ......"

"Her name is Yu Yao, and her nickname is Big Girl." Li Bai nodded.

"Oh, please forgive this Yuyao girl......"

This apology is very sincere, but the little girl in Li Bai's arms, who is only more than two years old, is not clear about the situation at all, blinking her eyes, and not saying anything. It's just that the old man, who may have thought that he was so fierce just now, suddenly became amiable, and finally dared to look at the old man head-on, with a sweet smile on his face.

Seeing the big girl showing a smiling face, Li Bai felt that he was happy. Well, it's still cool to be able to help the little girl vent, this old man is still good, so forgive him once.

"Well, this apology sounds sincere, so be it. I remember to send the usual copper money to my room, I still lost money, just to make this abacus cost a tael of gold, today is a loss-making business. Li Bai blinked and sighed.

"It turns out that this thing is exchanged for an abacus, and this name is also appropriate." Dr. Yan sighed, and then said: "I don't dare to let Li Gongzi lose money, it is better to let this one or two gold, and someone Yan will come out, this abacus ......"

After all, he is still not thick-skinned enough, but Dr. Yan can't go on when he talks about this, but the idea of wanting this artifact is fully revealed.

How can I say that it is also an artifact, Li Bai may have only spent one or two gold to make this abacus, but this thing itself is indeed many times more advanced than that abacus, and the value of this thing is naturally not matched by one or two gold.

But there's no way, Comrade Yan has no money!

Although Dakang still attaches great importance to arithmetic, and even included Ming arithmetic in the imperial examination, arithmetic is a small category after all, everyone wants to be an official, and most of the applicants are Xiucai, Ming Jing, Jinshi, which can be added to the subjects of officials and knights in the future.

It's like he, a doctor of arithmetic from Guozijian, in addition to a fixed monthly salary, there are also occasional people who ask to come to the door, or like this time, he is sent out to settle some accounts, but he has no money to come in.

Take out these two gold, maybe you have to go without meat for a month, no matter how much, or gritting your teeth, you can make up more, but after all, there is still a family to take care of, you can't sell the house in the capital for his interest, right?

"Huh? Does Dr. Yan want this abacus? Li Bai asked with a wink.

"Yes!" Yan Kui replied with a red face, no matter how embarrassed he was, he couldn't refuse the temptation in his heart.

There is no way, for a person who has devoted himself to arithmetic for most of his life, this simple abacus is like those peerless beauties in the eyes of the disciples, which makes him excited, and if he doesn't try it in his hand quickly, his heart will itch so much that he can't help himself.

"Hey, what's so embarrassing about such a small thing? Since Dr. Yan wants to spend money to buy it, one tael of gold is one or two gold, am I, Li Bai, such a stingy person? Li Baimei opened his eyes and smiled: "But trading is trading, gambling is gambling game, even if you spend a tael of gold to buy this abacus, the copper money is still indispensable." ”

"That's how it should be! Li Gongzi, wait, I'll go and someone send the money! Dr. Yan was overjoyed.

"Hmmm! Don't be in a hurry, we're still afraid that you'll run away on the same boat? Besides, you are a doctor of arithmetic in Guozijian, and when you arrive in the capital, I am not afraid that I will not be able to find anyone, so you can take this abacus away first! I'll have someone deliver the money to my room! Li Bai said with a smile, but that smile seemed to Master Cen and Zhang Jiazhen, who were already slightly familiar with him, with the smell of calculation.

However, at this time, Dr. Yan couldn't take care of it so much, and when he heard Li Bai's words, he happily caught this inferior abacus in his hands.

It's worth it!

When you get the capital, you have to find those craftsmen, according to the shape of this abacus, and rebuild, well, with this artifact bonus, or this arithmetic will have to shine in his hands?

Looking back at this Li Bai, where is there still a trace of scoundrel? In Lao Yan's opinion, this young man is a good person!