Once people are busy, time always flies.

"Hoo ......"

After packing his things, Wang Can exhaled heavily, took out a brocade and wiped the sweat on his forehead, and said happily: "It's finally finished...... Cambodia, are you really not going to go to my house? It's a month, so it's good to go to my house to play! ”

"No, no."

Shaking his head, Zhang Cambodia said with a smile: "Thank you for the invitation...... Say hello to your parents on my behalf. I have other arrangements for this clothing leave, and my relatives in Chang'an will also have to go around and walk around. ”

“…… It's good. ”

was politely rejected by his friends again, and Wang Can no longer insisted. He knew that Zhang Cambodia had relatives in Chang'an, and he had a pretty good relationship, so even if he didn't go home, there was no reason to go to his house for this holiday.

There was a little regret, but Wang Can was already homesick at this time.

His home is only more than 200 miles away from Chang'an, but with the current road conditions and traffic conditions, even the fastest horse cannot go back and forth in one day, so it is definitely impossible to go back during the ten-year holiday, and he can only wait for the long holiday twice a year. For the students of Guozijian, there are only two months of long vacation a year, one is the field vacation during the busy farm in May, and the other is the clothing leave that needs to be changed in winter clothes, and if you don't go back, you will have to wait until more than half a year later.

So as soon as the things were cleaned up, Wang Can couldn't sit still.

He had sent a servant to pick him up, and he was waiting outside, and it was still early, so if he went out of the city, he would find a place to stay before dark, and he would be home tomorrow afternoon. But if you start later, if you delay on the road, you may not be able to get home the day after tomorrow.

But just when Wang Can was about to say hello and leave, he suddenly saw what was being written on the desk in Zhang Cambodia's hand, raised his eyebrows and smiled: "What?" Still looking at your math? Haven't you watched all of these things many times? ”

"Hehe, think about it again."

Smiling slightly, Zhang Cambodia said lightly.

Wang Can could only shake his head in this regard, and said helplessly: "You, you're too obsessed with this thing...... You're not an arithmetic person, wouldn't it be nice to be able to use this Tianzhu number to make some calculations, why are you thinking so deeply? ”

These days, Wang Can also learned some mathematics with Zhang Cambodia.

It's not as deep as you learn, but because you have a foundation in arithmetic, so after you thoroughly master the Tianzhu numbers with the help of your friends, there is no problem with simple addition, subtraction, multiplication and division, and you can do it in minutes.

But after studying deeper, Wang Can had no interest.

Again, arithmetic is something that only the little officials need to learn deeply, and for these promising students, it is enough to be able to understand and do simple calculations.

For Zhang Cambodia's obsession, Wang Can is really difficult to understand.

Merely......

Looking at the paper and pen that Zhang Cambodia was using, Wang Can was really envious!

Willow branch charcoal, according to Zhang Cambodia, is made by the Han Wangfu, which is simple and convenient to use, and can be directly displayed on the paper without humor. There is nothing to envy about this thing, even if it is given to Wang Can, he is not rare to use, because there is nothing to praise at all except for the fast writing and the small writing of the characters.

But the white paper under the tip of this point, it will drool once at a glance!

The famous Han Wang paper, he even saw it for the first time!

In fact, not to mention that he Wang Can is a little student, I heard that Confucius of Guozijian's sacrificial wine has also sighed in public many times, saying that after using Han Wang paper once, he will never want to use other papers! It's a pity that this thing is extremely rare, and it is not possible to get one for a long time on weekdays.

As a result, his friend Zhang Cambodia is now using a book made of Hanwang paper!

It's not too thick, it's one hundred and eighty pages.

Anyway, every time I see Zhang Cambodia writing and painting in this book, Wang Can is heartbroken - such a good paper is actually used to memorize those arithmetic formulas, is it a tyrannical thing?

It's a pity that Zhang Cambodia said that the king gave him paper and pen to encourage him to learn mathematics, and if it is used for other purposes, it is insincere, and it must not be ......

Seeing his friend's expression, Zhang Cambodia didn't care, just smiled and said: "If you are interested, take a look at it, anyway, there is time outside of schoolwork, so it is better to study a little more when he sits idle." ”

“……”

As soon as he heard this, Wang Can immediately fell silent.

This person is really incomparable, and if he does, he will really be angry!

Obviously, they are all the same teachers and the same books, but every time they take the tenth and monthly exams, Zhang Cambodia will always be one of the top ones, and Wang Can will always be one of the ones who will not slip away! And this is still the premise that Wang Can is quite attentive, and Zhang Cambodia does not spend less time in mathematics!

The thought of this made him feel a little confused.

Under the congestion, Wang Can was not interested in spending time with Zhang Cambodia, and shouted directly outside the door: "Little Liu, come in and move things!" ”

"Yes, Jiro."

Between the words, Xiao Liu, who came from the family, walked in, and after saluting respectfully, he began to help his second son carry his luggage.

And with this bit of effort, Wang Can glanced at his friend: "Cambodia, since you like mathematics so much, why don't you just take advantage of the clothes to visit King Han?" I see that he sends you some new things from time to time, which is quite important to you! ”

“……”

Frowning, Zhang Cambodia did not speak.

Of course he understood what his friend meant, but in fact, if he had changed someone casually, Zhang Khan would have come to visit him a long time ago.

But the other party was a prince, and he was a little stunned.

Don't look at the last time I went to see Li Yuanjia, Zhang Cambodia was very bold, and he was very comfortable with neither humility nor arrogance, but in fact, it would be a bit nonsense to say that he was really so calm in his heart. Especially after coming back, Zhang Cambodia specially asked someone to inquire about King Han's situation, and knew a lot of things related to him......

The more he knew, the more afraid he became.

It's not that I'm afraid of the identity of King Han Li Yuanjia, after all, he is really kind, and he didn't look down on him because of his identity and age, but was extremely supportive of his behavior of wanting to learn mathematics! Not only did he give a set of books, but he also gave him extremely precious Hanwang paper, and even asked people to send two newly written math ......

What Zhang Khan is afraid of is not the person of King Han, but the things he knows!

A math that makes itself obsessed with this, what if it is a way to multiply the output of a rollover? And the dizzying glass, stunned movable type printing, will I continue to indulge in it?

Zhang Khan Zhi knows himself too well, and he absolutely can't resist these temptations.

And now if you only have one math, you can keep your studies by working hard, if you learn more......

“…… Let's talk about it. ”

After being stunned for a moment, Zhang Cambodia sighed slightly and said, "Why don't you leave here?" If it's any later, you'll really have to walk for three days......"