"Little Brother Yan, can you take a step to speak?" said Yan Craftsman with a smile, his attitude was very friendly.

Xu Wen stared at the box in his hand for a while, nodded to Xu San and Jiang Wangfeng, and followed him to the side.

"I would venture to ask, is what Little Brother Yan taught Sun Chen's two companions a method of mental arithmetic?" asked Yan Jiangguan straight to the point.

"Yes. Xu Wen nodded.

"Can I know the name of this mental algorithm?" asked Yan Craftsman again.

"Mental arithmetic. It is a mental arithmetic method that simulates an abacus in your mind. Xu asked truthfully.

"Analog abacus ......" Yan Craftsman Guan chewed the word in his heart, and his eyes lit up, "I haven't learned it, but I can also learn it?"

"Yes, it's enough to memorize the mantra. Xu asked.

"Can it be done in one day?" asked Yan Craftsman.

"Yes. ”

"What is the scope of application?"

"Addition, subtraction, multiplication and division, there is no limit to the number of digits. ”

"How fast can you go?"

"Ten digits plus minus two interest complete. ”

Yan Jiangguan gasped.

"It's not a single addition and a single subtraction, it's a mixed addition and subtraction, about fifty times. Xu Wen recalled the news he had seen before and added.

Yan Jiangguan was speechless.

"But this level is not something that ordinary people can do, and you have to train for a long time. Xu asked.

"Is this also the secret of Little Brother Yan's master?" asked Craftsman Yan.

"No, I learned it somewhere else. Xu Wen glanced at the box in his hand and shook his head.

"Then ......" Yan Craftsman hesitated for a moment, then made up his mind to ask, "Did the person who taught you say that you should not teach others?"

"Nope. Xu Wen shook his head again.

In fact, he didn't need to say it to see that he had already taught Sun Si and Chen Wannian mental arithmetic, and this thing would not be kept secret. According to the taboo of this era, Yan Jiangguan probably asked him like this because he thought of this.

"Then take the liberty of asking, can you teach it to me? I can spend money to learn! If you don't want to accept money and feel that it is too coppery, you can also use other conditions instead!" Yan Jiangguan instantly became excited, and all his previous calmness and calmness were left behind.

In this era, it is really abnormal to say "money is too coppery" to an ordinary young craftsman like Xu Wen who has only passed the apprenticeship test, but this also confirms Xu Wen's previous guess from another aspect.

He glanced at the box in Yan's hand again and said, "The money is good, but I do want something else now." I want to know, what are we going to do when we go to the West Desert this time, or rather, what are we going to do with this part of the people we have chosen?"

The smile on Craftsman Yan's face instantly disappeared and he looked at him intently.

"Don't ask for money but intelligence, it's a smart choice. worthy of his apprentice. He said slowly.

Knowing oneself and knowing one's opponent and winning all battles is not only useful in the art of war, but also very practical in daily life.

You can make as many judgments as you know about things. These choices and judgments are what can really give you an advantage, and they are much more important than money.

Xu Wen would choose like this, his vision is indeed higher than that of ordinary craftsmen, and in the eyes of Yan Jiangguan, it must have been taught by "that person".

"He" is very attentive to this apprentice......

Xu Wen smiled and did not speak.

Yan Jiangguan thought for a moment and asked rhetorically, "What do you think about the current situation?"

"Me, now it seems that all three hundred of them were deliberately selected to have some kind of talent. They have little background and little systematic education, so they can be said to be a blank slate. The craftsmen want to teach them something along the way, and they definitely want them to do something in the future. I wonder what's going on. Xu Wen slowly said his thoughts and said it very clearly.

"That's a lot. Yan Gongguan looked at him in surprise. It's only been five days on the road, and most of the time is on high-intensity driving, and Xu Wen didn't communicate much with others, so he even figured out their plan.

However, it can also be seen that "that person" did not say anything more to his disciple, otherwise he would not have known anything.

He beckoned to Xu Wen and asked Xu Wen to follow him.

Moments later, the two made their way through the crowd and came to a carriage.

Xu Wen had also been in a carriage before, and his impression was not particularly good.

The space inside the carriage is generally very small, and it is even smaller after some things are placed, and it is very cramped for several people to squeeze inside.

The ventilation of many carriages is not very good, and there is a strange smell in the carriage for many years, and it often feels like the air cannot be breathed.

It's even more uncomfortable to walk, the carriage is bumpy, and motion sickness is common.

Before that, the best carriage Xu Wen had ever sat in was the Tianzuo Pavilion, which was spacious and comfortable, covered with soft cushions, and walked smoothly.

Of course, whether the car is stable or not depends on the road, Lin Luo is the capital of Jiangnan, and the road surface is much stronger than other places.

Yan Jiangguan's carriage is different.

Horse-drawn carriages often have ornaments on them, and Luan is one of them.

Luan is the bell hanging on the car, and it rings when the car is driving, which is very good.

There were a total of four luans hanging in the car of Tianzuo Pavilion, and the sound was staggered, and when the vehicle was moving, it seemed to play a tactful and crisp music.

There was not a single luan hanging on Yan Jiangguan's car, and there was no other decoration, not even a cloud pattern was engraved.

But even so, the whole carriage still does not look shabby at all, but has an extra sense of antiquity, revealing a different elegance, and every detail can evoke a sense of pleasure in the heart.

To be able to have such a carriage, this Yan craftsman official may have a greater background than Xu Wen thought.

"I made this car myself. Yan Jiangguan noticed Xu Wen's eyes, patted the wheel, and said with a smile, "Many people like to ride in cars now, but I don't like it very much." For this reason, I studied the "Examination Record" for a year and made this Yin car. I referred to some ancient cars from the Qin and Han dynasties, and spent some new thoughts, and I still like them very much. ”

Xu Wen looked up at the four walls of the carriage and found that it was not pure wood, but a mixture of wooden frames and rattan. Yin refers to the seat in the carriage, and Xu Wen estimated that the name of the car came from this.

Rattan weaving is light and breathable, and the fire resistance is relatively poor, but there is generally no open flame on the car, just pay attention to it.

The two got into the car, the interior space was obviously more spacious than Xu Wen had sat before, there was no peculiar smell, and all the items were fixed on the wall of the car, and the storage was very cleverly done in today's words.

"Sit. Yan Jiangguan pointed casually, put the wooden box in his hand on the table next to him, turned around and took out something from the drawer next to him, and handed it to Xu Wen.

"What is this?" asked Xu Wen casually.

"It's all the plans for the nightly teaching assessment on the way to the West Desert this time. Yan Jiangguan said.

Xu asked's hand for a moment.

"Can you show me this?" he asked, looking up after a moment, incredulously.

Not long after the large-scale training exam began, the teacher said to you, "I'll give you all the questions, right?"

What do you want to do?