Datang: Acting as a celestial mystery at the beginning

If Li Yi'an dared to say this, they would first express their disdain, then ridicule him, and then ridicule him to shamelessness.

But when a little girl said this, besides being ridiculous, they found it ridiculous.

Just a little girl, what spells does she know?

"Little sister, don't you, don't you know how to count?"

"It's the first time I've seen someone dare to question Brother Wenkang's spells. I thought it was someone, but it turned out to be just a little girl! You don't play in the mud, why are you here to join in the fun?"

"Little girl, let's go home. Seeing as you are young, we don't want to argue with you."

What they said hit Wan Shun's self-confidence greatly, she looked at Li Yi'an pitifully, her big shiny eyes glistened with water.

"Brother-in-law, they really made a mistake."

Wanshun was very wronged, but said with certainty.

Li Yi'an hugged her distressedly, and was about to say a few words.

"OK OK!"

That man's name is Li Wenkang, and he is from the Li family of Zhao County. He was a little angry when he heard that someone dared to question the results of his spells. , smiled and said: "Little sister, since you said that I made a mistake, how do you think it should be calculated?"

The others quieted down, and their eyes fell on Wanshun, to see how she could explain it, which made the little girl nervously hold Li Yi'an's hand.

"Our Wanshun is the best, tell them the correct answer, and smash their so-called pride."

Li Yi'an glanced at the calculation process, then encouraged him softly.

Li Yi'an could tell at a glance that their calculations were wrong, and it was surprising that Wanshun could also see it. You must know that she only quietly listened to it several times when she was teaching Li Chengqian and the others. can also learn.

Xiao Wanshun's mathematical talent is not much worse than Li Chengqian's, and it seems that their old Li family's genes are similar.

Encouraged by Li Yi'an, Wan Shun pursed her lips and said, "Your topic is that the wine shop has fifty altars of wine, each jar has thirty dendrobium, one dendrobium ten dou, one dou ten liters, and today it sells for 340 two dendrobium and another 84 Liters, how many liters of wine are left?"

"Thirty dendrobium per altar is 340 dendrobium, one dendrobium is ten dou, one dou is ten liters, and 84 two dendrobium and 11 liters are sold, leaving 710 six liters, which is not enough for you. Two hundred and one liters, the wrong step is in this place!"

She stretched out her little finger, pointing to the position near the end of the calculation process, and there was a numerical calculation error.

The arithmetic problem of this kind of unit conversion is not very difficult. The difficulty is that it requires a lot of calculations, and the process is a bit cumbersome, and it is easy to make mistakes.

Both Li Yi'an and Wanshun just glanced at each other, and didn't use their pens to calculate. He knew how to do mental arithmetic and was able to calculate it very quickly, but he didn't expect Wanshun could do it too. Mental arithmetic was also taught in class, and Wanshun who listened to it actually learned it.

Everyone in the field was quiet for a while. Li Wenkang immediately picked up the paper and recalculated the entire calculation process completely. When he saw the wrong place pointed out by Wanshun, he was shocked.

He really went wrong on that step!

"Little...how did you figure it out?"

Li Wenkang raised his head abruptly, staring at Xiao Wanshun with fiery eyes.

"It's very simple, just think about it and figure it out!"

Wanshun blinked her big eyes, as if she couldn't figure it out, is this thing really that difficult?

She thinks it's really simple, maybe they are too stupid.

Think about it, even if it comes out?

how can that be!

But Li Wenkang saw with his own eyes that Wanshun didn't even have a calculation process, so he came to the result, and even pointed out his mistakes.

Li Wenkang began to doubt his life, could he not be as good as a little girl?After learning so many years of spells, I feel that I have learned them all in vain.

Those other people all stared wide-eyed, and Li Wenkang admitted that he was wrong, and the little girl really counted it right!

"I have another question, little sister, can you answer it?"

Li Wenkang refused to admit defeat, and asked: "Today there are objects whose numbers are unknown. When counting three or three, there are two left, when counting five or five, there are three left, and if counting seven or seven, there are two left. How many things are there?"

"23!"

Wanshun almost blurted out.

Li Yi'an explained this to them, and it came from Confucius' calculation of the scriptures.

"If I want to go to West Market to buy pens, the high-quality pens cost five yuan each, and the low-quality pens cost two yuan. I spent a total of 120 yuan. If I paid [-] yuan, how many high-quality pens and how many low-quality pens did I buy?"

"Ten high-quality pens and twenty low-quality pens."

Wanshun briefly thought about this question for a while and came up with an answer.

My husband said that a problem like this is the evolution of a chicken and a rabbit in the same cage, and the reason is the same.

Li Wenkang's eyes widened in surprise. This question is not difficult, and he can calculate it, but he can't do the process without calculation. He can get the result after thinking about it.

How powerful is this to come up with an answer?

Li Yi'an was also surprised, never thought that Xiao Wanshun's math talent is so high.

Compared with Wanshun, those math geniuses in later generations are almost the same.

"Brother-in-law, am I right?"

Wan Shun raised her head and looked at Li Yi'an as if asking for credit, her big eyes were full of joy.

"Yes, yes!"

"Little sister, I'm sorry, I was blind and arrogant just now, I'm sorry!"

Li Wenkang bowed, full of courtesy, and said first: "I have one more request, I... can I worship you as my teacher?"

His attitude is very sincere, his eyes are getting hotter and hotter, and he wants to learn the method that can calculate the result after thinking about it.

As soon as these words came out, those people who laughed at Wanshun just now felt that they were the joke.

"Brother-in-law!"

Wanshun didn't know how to deal with this situation, so she tugged at Li Yi'an's sleeve nervously.

"If you want to worship my family Wanshun as your teacher, it depends on whether you have the qualifications."

Li Yi'an said: "I taught Wanshun's spells. Now I will give you a question. If you can figure it out before today's poetry meeting ends, maybe I can give you this chance."

"Today, there is a rooster that costs five, a hen that costs three, and three chicks that cost one. If you buy a hundred chickens for a hundred dollars, ask the rooster how much is the hen and chicks?"

Li Wenkang hurriedly took paper and pen to copy down this question, and then fell into deep thought, but he couldn't think of anything. He was about to ask Li Yi'an and the others, but when he looked up, he realized that he had already gone far away.

"Brother Wenkang, I heard that the prince is here too, why don't you go ask the prince for advice."

A man next to him saw that he couldn't figure it out, so he suggested.

"The prince is here too?"

Li Wenkang picked up a pen and paper, asked where the person was, and ran over in a hurry.

Wang Gong, whose full name is Wang Xiaotong, was a famous mathematician in the early Tang Dynasty. He was the first mathematician in the world to propose the cubic equation and its solution.

At this time, Wang Xiaotong was explaining algebra to a group of scholars. As one of the six arts of a gentleman, there were quite a few people who learned it. People like Li Liangping were also among them, and they seemed to be listening to the lecture with an open mind.

Although Li Liangping really wanted to trouble Li Yi'an again, but he lost face just now and made him faceless, and it was not good for him to go again without any reason, so he followed Wang Xiaotong to gain his reputation first. .

"My lord, I finally found you!"

Li Wenkang trotted over, very excited.

"Brother Wenkang, aren't you going to help those students solve arithmetic and math problems? You are in such a hurry and disturbed the prince!"

Li Liangping spoke first.

"I shouldn't disturb the prince, but I have a problem here. I want to ask the prince to look at it, but I can't solve it!"

Li Wenkang quickly handed the paper to Wang Xiaotong.

"This……"

Wang Xiaotong just finished reading the question, thought for a while, his hands trembled slightly: "Where did you come from for this question?"