Chang'an City is not a city short of water, but there are not many people who can have their own pavilions and ponds and flower beds in the courtyard.

However, Wang Sheng's family is solid, located in the house of Dunhuafang, and a pool with a large area has been dug up.

Although it is early spring, the peach blossoms next to the pond are in full bloom.

The breeze blows, and the pink peach blossoms fall on the surface of the pool, making the carp in the water chase for a while.

"Dig bigger, dig bigger!"

Wang Sheng's clothes were covered with a lot of mud, and he commanded several subordinates in the palace to dig next to the pool.

"Lang Jun, this small pond has been digging for several days, and if it expands further, there is no need."

The housekeeper in the house felt that his Langjun's situation in the past few days was very wrong, especially when he came back from Guanshishan Academy that day, he didn't care about anything and let the subordinates of the family start digging a pool in the courtyard.

Good end, what are you digging a pool for?

"You know what! It takes five quarters of an hour to fill the pool with a single opening, and this small pool will definitely not last five quarters of an hour, so how can I solve that problem if I don't dig it bigger? ”

Wang Sheng felt that although he was off the list, he must prove that his arithmetic level was no worse than others.

In particular, Li Kuan took out the questions to teach everyone, although he didn't make them that day, which was a little embarrassing.

But after thinking about it, no one else did it, indicating that it was not their own problem.

If only you can answer it at that time, it can be regarded as saving some face.

Otherwise, I really don't know how to raise my head in the family in the future.

Especially Wang Jie, who was very warm to himself before, has obviously been a lot colder these days.

"Lang Jun, please forgive the old slave for being ignorant, I have never heard of such a solution, shouldn't it be enough to have pen, ink, paper and inkstone?"

This old housekeeper, who served Wang Sheng's father for the first half of his life and Wang Sheng for the second half of his life, has an extraordinary status in the mansion, otherwise he would not dare to speak like this.

"Humph! You know what! ”

After Wang Sheng finished speaking, he personally picked up a hoe, jumped into the pool, and began to dig up the soil.

……

For people who are passionate about arithmetic, when they encounter a problem that they don't know, they want to figure it out.

Wang Sheng is like this, and Li Yan is naturally no exception.

"As the proverb goes, the way of arithmetic has its own unique laws. His Royal Highness the King of Chu asked this question, although my father didn't know how to answer it for a while, but from my understanding of His Royal Highness the King of Chu, as long as I found the right way to this question, there should be a shortcut. ”

Li Chunfeng came back from outside and found that his only son was still writing hard in the study, so he couldn't help but remind him.

He naturally heard about the matter of Guanshishan Academy.

As a Taoist priest who is proficient in arithmetic, Li Chunfeng naturally studied this question.

He has ideas, but he feels that his solution to the problem is too complicated, and it doesn't take a whole day, and it can't be calculated at all.

However, he thought that Li Kuan used to do things in the past, always imaginatively, making people unable to find the law, but it always had an amazing effect.

Will this arithmetic problem be similar?

Therefore, although he couldn't resist the plan to go to Guanshishan Academy to discuss this question with Li Kuan, he couldn't help but want to give his son a touch.

"Got a shortcut?"

Hearing such a reminder from Li Chunfeng, a bystander, Li Yan was immediately stunned.

I've been studying this topic for a few days, and I feel like I've caught something several times, but I feel like there's something missing, and I haven't really answered it.

Now that I think about it, I think what I reminded Aya is probably right.

"Aye, I'm going to take a shower and sober up."

"That's right, the combination of work and rest, arithmetic is not something that can be learned by brute force."

Seeing that his son had returned to his former demeanor, Li Chunfeng nodded with a smile and left the study.

In the dead of night, a whale oil candle swayed in the breeze, shining the figure at the table.

Since the number of whaling ships in Dengju has increased, whales are no longer an exclusive specialty of the East China Sea fishery, and some families have even started fishing for whales off the coast of Gangnam Province.

The price of whale oil candles in Datang is declining at a rate visible to the naked eye, and now it has begun to enter the homes of ordinary people.

A family like Li Yan, although the family background is not rich, but with whale oil candles, it is no longer distressed.

"Haha! I've figured it out, I've figured it out! ”

After five days of hard work, Li Yan finally found the right way to solve the problem, and couldn't help but laugh out loud.

Aya is right, there is indeed a shortcut to this topic.

If you can find the right idea at the beginning, it won't take half an hour to solve it.

It seems that His Royal Highness the King of Chu has set such a rule, and he really didn't deliberately embarrass anyone.

If you want to blame it, everyone's arithmetic level is too low.

……

In the courtyard of the Chu Wangfu, Li Kuan was arranging the purchase of tea, but he unexpectedly heard that someone came to visit him with the answers to the arithmetic questions a few days ago.

"How did you calculate these four quarters of an hour?"

Looking at the guest in front of him who was about the same age as himself, Li Kuan was a little impressed, as if he was standing in front of the crowd that day.

"His Royal Highness the King of Chu, it's like this, I assume ......"

Li Kuan listened to his mouthful introduction, and immediately understood in his heart that this guy should really rely on his own ability to answer.

It seems that there are still talents in Chang'an City, and it stands to reason that he should not be able to get a ranking in this year's Ming Arithmetic Subject.

To put it mildly, the people of Guanshishan Academy are considered to be colleges, except for Liu Yuan, whose minds are not worse than him, and it is estimated that it is not easy to find someone who is stronger than him.

Being able to solve this problem without using equations still has real skills.

"This king is very curious, which questions did you answer incorrectly in this year's Ming Arithmetic Subject?"

"Lord Wang, I didn't participate in this year's Ming Arithmetic Section."

"Huh?"

Li Kuan was stunned for a moment.

"My father, Li Chunfeng, I learned arithmetic from him, but he didn't support me to take the arithmetic exam."

The son inherits his father's business, and Li Chunfeng, a Taoist priest, obviously wants his son to inherit the mantle.

Of course, this is estimated to have something to do with the fact that even if he is a high school champion in the Ming Arithmetic Department and goes to officialdom, the starting point is not very high.

"Li Chunfeng's son?"

Li Kuan didn't expect that he would actually intersect with Li Chunfeng again.

To be honest, Li Kuan was curious about him, but it was far from the level of worship.

However, Li Kuan had a new guess in his heart about Li Chunfeng's Dao technique.

If you don't know it, psychology, arithmetic, astronomy and other skills are integrated, and there is the so-called god operator.

"Yes, I came to the prince today because I wanted the prince to allow me to study at the Guanshi Mountain Academy!"

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