The ceremony of acknowledging the father was successfully concluded.

The dinner lasted until about twelve o'clock in the morning.

Everyone dispersed, and Wang Chen helped Wang Jien, who had drunk too much, to go back to his room to rest, and then returned to his bedroom.

in the bedroom.

At this moment, he was sitting at his desk with a wooden box containing a precious stone abacus.

I haven't had a chance to look at it before, and I don't know what kind of material it is made of.

But since Zhao Kuangyin can reward it, it must not be a bad thing.

What could it be?

Under the candlelight, Wang Chen untied the rope that tied the wooden box tightly, and then lifted it.

I saw a fifty-centimeter-long black jade material abacus lying quietly there.

Wang Chen's eyes lit up, "Moyu?"

He couldn't be too sure, and began to look closely.

Because there are many things similar to the material of black jade, such as pit tile stone, Qinghai black and white jade, Xinjiang black jasper and so on.

And there are also a lot of types of black jade, such as Taishan black jade, Hetian black jade and Xiushan black jade, etc., and the price is also different.

It's just that like the abacus made of all-ink jade in front of me, even if it is Xiushan ink jade, Taishan ink jade, etc., which are slightly less valuable, they are also very collectible, and even the auction price will not be low.

After all, Wang Chen weighed it just now, and the weight of this abacus must be about five catties.

Well, it's better to be Hetian Moyu.

Like a good quality Hetian ink jade, a small pendant can reach between tens of thousands of yuan and hundreds of thousands of yuan, if it is Xiushan ink jade, it may only be a few thousand pieces or less.

Here we are talking about one piece, not gram price.

And the quality should be very good.

Wang Chen observed carefully, the color of the black jade on this abacus was slightly uneven, and some spots could be seen from time to time, including beads, some of which were also misty.

It's just that the black color is very rich, almost to the point of total black, as if it was painted with black paint.

The most important point is that it is very oily, and it feels like a greasy feeling when you touch the cooking oil.

It shouldn't be pit tile stone and Qinghai black and white jade, because these two will not contain a greasy feeling.

So what is it exactly?

Wang Chen leaned over to see that the edges of these black jades were slightly transparent, but next to the candle light, they were not too transparent and showed green light, and the black jasper was also excluded.

Wang Chen is very serious about this.

Although I don't know much knowledge, I studied very carefully and was able to identify it a little bit by myself.

The black jade on this abacus is all black, as thin as mutton fat, and the others cannot be distinguished.

Wang Chen muttered to himself: "Could it be really Hetian Moyu?" Forget it, I can't understand it, go back to modern society and give Yun Lao their palms." ”

Speaking of returning to the modern age.

He turned on the virtual screen he hadn't seen in a long time.

Energy buffer gauge value: (16907/16907).

It's already full, nothing.

Now that Wang Chen is in Bianjing, it is definitely impossible to travel back to the traditional time, otherwise there may be a traffic accident, if the positioning and teleportation are too wasteful of energy value, and he has no real estate in Bianjing, how can he come back after teleporting back to modern times?

He was about to turn off the virtual screen, but he missed modern society a little, so he simply clicked on the positioning teleportation and wanted to take a look at his Yunqiyuan villa.

Click on the location transfer.

Wang Chen snorted and rubbed his eyes, "What's the matter?"

There are five more locations for positioning and teleportation, namely the house he is in now and the house of the other two in Bianjing, one is very small, like a thatched house, and the other is about half smaller than the house he is in, and there is also a courtyard of the imperial palace and a large mansion in Jinling, a landmark.

Well?

Could it be that these are Wang Jien's real estate?

Wang Chen felt that it should be, otherwise he would not appear in the house he was in.

But why did Wang Jien's real estate appear in the positioning transmission as his own?

Wang Chen was a little confused.

Eh, it seems that the building built by parents in the countryside in modern society is also included in the positioning teleportation, is it that the mysterious space defaults to the things that it has the right to inherit, and it belongs to itself?

That's right.

After all, Wang Jien only has one of his righteous sons, and he has not heard of any relatives, and after a few years, Wang Jien kicks his legs, and these things will naturally be left to Wang Chen.

"Doesn't that mean that I can locate and teleport back?" Wang Chen was a little happy, he stayed in the Northern Song Dynasty for more than ten days, and he really missed modern society.

Do you want to go back?

Forget it, positioning and teleportation are too wasteful of energy.

Tomorrow, when you go out for a walk, see where there are Tang Dynasty buildings that still exist in modern society, and then travel back, you can't waste more than 16,000 points of energy.

Wang Chen thought very clearly, it was best to wait for Shi Shouxin to sell watches, clocks and toilet water for him before going back, and then things worth millions could be sold, and good things would be kept first.

Okay.

Now it's up to Shi Shouxin to give it a lot.

Thinking about it, he put away the Moyu abacus, freshened up and fell asleep.

……

Following.

It snowed heavily in Bianjing.

The entire Kaifeng was shrouded in a white vastness.

Wang Chen, who got up in the morning and freshened up, could see the white gas when he spoke, but he had to go out, and from today until he returned to Tongzhou, he had to give math lessons to three students.

Walking in a horse-drawn carriage on the streets.

From time to time, the sparse voices of the people were heard in my ears.

Suddenly, while passing near the bazaar, Wang Chen heard a conversation of interest.

"Eh, did you hear that?"

"What?"

"General Shi's mansion holds a singing and selling meeting!"

"What's so strange about holding a singing and selling conference?"

"You don't know, General Shi took a lot of magical things out, what kind of watches that can record time, table clocks, and what dew, anyway, they are all treasures, so many officials and nobles have participated, the most important thing, General Shi let out a word, no money, only exchange rare treasures, tsk, Shifu is equivalent to holding a Wanbao Conference today. ”

Wang Chen, who was sitting in the carriage, lifted the window and looked at the two people who looked a bit like scholars, eating breakfast and chatting.

I don't know what treasures I can exchange for.

Wang Chen was eager to know, but he had a falling out with Shi Shouxin on the surface, and he couldn't participate, forget it, he would naturally know when the results came out, so let's take a look at his three students first.

……

Jin Wangfu.

Under the leadership of the subordinates, Wang Chen first met with Zhao Guangyi and his side room Mrs. Li, who was later Concubine Li Xian, as for Zhao Guangyi's third wife, Queen Li, who had not yet married, and the first two wives died again.

Speaking of which, Concubine Li Xian looks very beautiful, but Wang Chen knows that she has a short life and will die in a year or two, which is a pity.

It is also true that Concubine Li Xian's body is not very good, and she keeps coughing when she speaks.

After meeting Zhao Guangyi and Concubine Li Xian, Wang Chen was taken to the study.

Den.

Zhao Defang, Zhao Dechang and Zhao Yuanjie have been waiting there for a long time.

"Master. ”

Zhao Defang and Zhao Dechang said in unison and saluted.

However, the young Zhao Yuanjie spoke a little slowly, and his milky voice was a little leaky: "Master." ”

Wang Chen looked at the three of them with a smile, raised his hand and said, "No need to be polite." Suddenly, he saw that Zhao Yuanjie was missing a tooth, and he was puzzled, "Yuanjie, why are you missing a tooth?"

Zhao Dechang was afraid that his younger brother would not be able to speak clearly, so he explained: "Yuan Jie came back naughty last night and accidentally knocked out a tooth. ”

Oh.

That's right.

Wang Chen liked this child very much, squatted down and cared: "Yuan Jie, does your tooth still hurt?"

Zhao Yuanjie pouted and said, "Ah, the tooth was thrown away by my father, I don't know if it hurts." ”

Wang Chen almost laughed out loud with a puff, this kid is so funny.

At this moment, Zhao Defang asked, "Master, what do you call us to count today?"

Wang Chen thought for a while, put his hands behind his back, "I won't teach you to count today." ”

Zhao Dechang was curious: "Don't teach arithmetic?"

"Yes. Wang Chen nodded and said, "I'll teach you some number symbols first, these number symbols are called Arabic numerals, and when you learn and memorize them, I'll teach you basic arithmetic when I go back." ”

Zhao Yuanjie stuffed the index finger of his right hand into his mouth, opened his big bright eyes and said, "What are Arabic numerals?"

Sweat.

Can't you see you're still a snacker?

Wang Chen was amused by Zhao Yuanjie, and was in a good mood, explaining: "Arabic numerals are a symbol that allows us to calculate quickly, and if you learn it, any of you can be a master of arithmetic." ”

Zhao Defang and Zhao Dechang listened very carefully.

Wang Chen took out the pen and notebook he brought, "I'll write one, and you can read it." ”

"Good. ”

"Obey the Master's words. ”

Three students one in front of the other.

Wang Chen pulled a chair and sat down, held Zhao Yuanjie in his arms, took a pen and wrote down a "1", and then said to Zhao Defang and Zhao Dechang who were standing there: "This is read as one, which means one in the number one, two, three, four." ”

"One. ”

"One. ”

Zhao Defang and Zhao Dechang read aloud.

Zhao Yuanjie didn't react as fast as them, and also pulled the leaky mouth and said: "One~!"

"Good. Wang Chen snapped his fingers and began to continue teaching.

Well, in ancient times, the future emperor was taught one, two, three, four Arabic numerals, and it is estimated that Wang Chen is the only one among the people who have ever traveled.

But on the contrary, the future emperor Zhao Dechang has great respect for Wang Chen, perhaps because he saw how awesome Wang Chen's mathematics is last night.

For a while, the sound of a primary school student reading came from the entire study.

“2。 ”

“3。 ”

“4……”

The ten Arabic numerals were taught very quickly, and all three students memorized them in one morning.

At noon, Wang Chen had a meal in the Jin Palace, and in the afternoon taught them the most basic addition, subtraction, multiplication and division, to be precise, Zhao Yuanjie to add and subtract, and Zhao Defang and Zhao Dechang multiplication formulas.

Looking at the future emperor Zhao Dechang's recitation of the multiplication formula, Wang Chen felt inexplicably happy.

"One by one, one by two, one by two, two by two......"

Well, it's really interesting.

In fact, the multiplication formula has been available as early as the Spring and Autumn Period and the Warring States Period, but many readers don't learn it, after all, in the eyes of readers, the Four Books and the Five Classics are the most important things.

However, since he wants to learn arithmetic from Wang Chen, he must let the three of them memorize the multiplication formula, otherwise it will be too troublesome to teach.

……

The day passed quickly.

Leaving the Jin Dynasty in the evening, Wang Chen found the Tianhan Bridge built during the Tang Dynasty, he remembered that the modern society had investigated, and now it is buried in the ground of more than four meters in the modern society, and he doesn't know if he can use it to cross.

If you want to cross, it seems that you have to climb to a place more than four meters high on the Tianhan Bridge, otherwise you will not be able to open the door of crossing according to the crossing rules.

Because of the change of topography, Kaifeng in the Northern Song Dynasty, to modern society, many places are buried in the ground, such as the palace where Zhao Kuangyin lives now, which was later found to be buried three to twelve meters underground.

So Wang Chen has a headache, and the normal crossing conditions are poor.

Return to Wang Jien's house.

As soon as he stepped into the threshold, Xu Jiang came up with a smile, "Owner, just now a beautiful little lady sent a letter, saying that you should go to the banquet in the evening. ”

Wang Chen wondered: "I don't know any beautiful little lady in Beijing, did she say let me go to the banquet?"

Xu Jiang pointed to the east, "Huancai Pavilion." ”

Wang Chen blinked, "Listen to the name like Qinglou?"

Xu Jiang smiled very dirty, "Hehe, I inquired, it is the Qinglou, it is said to be a famous Qinglou in the capital, and the pandan girl in it is very beautiful." ”

Wang Chen sweated, "I'm living with that pandan girl, why did she invite me to go?"

"Then I don't know, you can read the letter yourself. Xu Jiang said.

Wang Chen was speechless.

As he walked inside, he opened the letter and pulled out the paper to look at it.

Hey, what Qinglou girl invited, it's obviously Shi Shouxin's handwritten letter.

Yes, Wang Chen knew what was going on, and it was estimated that the results of the singing and selling were out, and it was inconvenient for Shi Shouxin to meet Wang Chen generously, so he simply made an appointment in the Qinglou to hand over the things obtained from the singing and selling.

This old stone, I don't see it, is it still a frequent visitor to fireworks?

Thinking of Shi Shouxin's forty or fifty years old, and still visiting the Qinglou, Wang Chen inexplicably felt a little happy, tsk, interesting, well, don't think about what you don't have, go to see what good things Shi Shouxin sang and sold for him at night, he should be able to make a windfall, after all, the officials in the capital are very rich, and the treasures in the collection are estimated to be not much worse.

Wait until you get your things back and go back to modern society for a two-day "holiday".

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