After reading the book, the address of [Wanbenshen Station]: Avoid the pain of chasing books!

Li Dongsheng also heard Dean Zhang say that it should be better than arithmetic, and he almost laughed. Seeing Changsun Hao's confident appearance again, he was even happier, and said in his heart: Brother has learned high mathematics, and I'm afraid that you will have arithmetic problems, I just want to say sorry to everyone, I'm not targeting Changsun Hao, I just want to say that compared to arithmetic, you are all scum!

Some of the classmates also knew that someone in Changsun Hao's family specially taught him arithmetic, and they all began to worry when they knew that he was good at arithmetic: "Changsun Hao is very good at arithmetic, Li Dongsheng probably can't do it." ”

"It's miserable. Li Dongsheng is estimated to lose. ”

"Dean Zhang still favors Changsun Hao, otherwise it won't be better than this."

"If Li Dongsheng loses, won't Lichun Courtyard be able to go?"

Li Dongsheng heard the whispered discussion of his classmates, all of them were not confident in his arithmetic victory over Changsun Hao, especially the last sentence, which exposed the sullen hearts of the classmates and the heart of not being able to play, he wanted to say: If the question is difficult in high school, my brother can let him answer it first in 1 hour.

Dean Zhang and Mr. Ge discussed it again, and this time it became Mr. Ge's question: "Today, there is a household that is more than six feet eight inches wide, and the two corners are one foot apart. Q: What is the height and width of the household? ”

As soon as the topic of Mr. Ge came out, Changsun Hao and Li Dongsheng were all stunned. What does this question mean, to the effect that the height and width of a rectangular door are 6 feet 8 inches longer than the width, and the diagonal length of the door is 1 zhang, so what is the height and width of the door? What is the eldest grandson Hao confused, is he really not, he just learned simple addition, subtraction, multiplication and division, as well as the method of accounting, this topic is already the Pythagorean theorem, for him it is a book of heaven, just like a third-grade student you take a junior high school equation for him to do, not to force him to death.

What is Li Dongsheng confused? He forgot that this is the Tang Dynasty, the measurement method is different from the 21st century, the 21st century measurement is meter, decimeter, centimeter and other Western counting units, there is no zhang, ruler, inch and other length units, he is still modern thinking, so he was confused when he heard the question, this is not right, and he does not understand what the meaning of the two corners is. I was dumbfounded, I wanted to pretend to be a fool, but I didn't expect to become a fool.

The classmates were also stunned, they knew the meaning of each word, but they didn't even know what it meant, and it was even more impossible to say the answer.

Teacher Ge looked at everyone's reaction, and his heart was very happy, tmd now knows that Lao Tzu is amazing, you don't listen to me in class, you don't respect me after class, and no one gives me gifts during the New Year's holiday, I don't give you a horse today, you don't know how many eyes Ma Wang Ye has.

Dean Zhang looked at the silence in the classroom, and quickly pulled Teacher Ge over and whispered, "What does this topic mean, isn't it too difficult, and no one will do it?" ”

Teacher Ge stroked his beard and smiled: "Dean Hugh should be worried, it doesn't matter if this question can't be solved, because I also look at the nine chapters of arithmetic, I only know the answer, and if they can't answer, they should be taught a lesson, let them know that there are many things in the world that they don't know, and they can also restrain their arrogance." ”

Dean Zhang nodded when he heard this: "Brother Ge is really thoughtful. The two were still communicating in a low voice, and were just about to say that if no one could answer, they would leave school, when they heard a person's voice say, "Sir, what does it mean that the two corners are far apart?" ”

Dean Zhang and Teacher Ge looked up when they heard the sound, and it was Li Dongsheng who asked the question, and when they saw the eyes of the teachers, Li Dongsheng asked again. Teacher Ge had no choice but to explain: "The two corners of the door are 1 zhang long. ”

"Oh, it turns out that the diagonal is one zhang long," Li Dongsheng suddenly realized, and he saluted Teacher Ge: "Thank you, Mr. for solving your doubts." Without waiting for the teacher to reply, he immediately turned around and sat down, picked up the pen and began to write and draw.

The eldest grandson, Mr. Ge and Dean Zhang saw Li Dongsheng ask a question, and then sat down and began to draw ghost talismans, looking at each other, what do you mean? Will he really answer? Dean Zhang asked Mr. Ge with his eyes, and Mr. Ge also answered with his eyes that it was impossible.

The eldest Sun Hao and his classmates were more direct, and they all gathered around to see how Li Dongsheng answered the questions. There was no sound around, and the sound of the pen rustling on the paper was heard, and so many people saw Li Dongsheng draw the shape of a door on the paper, let the size be marked on the back, and then draw a line between the two corners. , everyone still understands it, and then everyone is dumbfounded, because Li Dongsheng began to draw other symbols.

Li Dongsheng recalled the conversion of ancient zhang, ruler, and inch to modern times, 1 zhang = 10 feet, 1 foot = 10 inches, 1 inch = 10 minutes (small ruler: 1 foot = 31.1 cm. Then write it on paper, of course, use Arabic numerals, and then the unit behind is still written cm, that is, centimeters, and list an equation, set the width to x ruler, then the height is (x+6.8) ruler from the title to get x2+(x+6.8)2=102

The solution is x1 = -9.6 (rounded), x2 = 2.8 (ruler),

It is 2.8 feet wide and 9.6 feet high.

After such a set of processes, the answer comes out. Li Dongsheng is also very satisfied, it seems that my brother is still okay, although the process is tortuous, but the result is still good. He picked up the paper and blew on it, and when he looked up, he was startled to find that a circle of people around him were looking at him. He put the paper on his chest and said, "What are you doing?" Surrounded me like this, I know that people are scary, scared to death. ”

Li Ting was still familiar with him, so he answered: "We are just curious, let's see how you answer the question." The classmates also nodded and said, "Yes, let's just take a look." "That's right, Brother Li, we just won't, it seems that you have already made the question."

Changsun Hao wanted to squeeze over to see, but he was afraid that Li Dongsheng would talk about him, so he had to sneer: "This topic is so difficult, it is estimated that Mr. is making things difficult for us, how can he be?" A few of his doglegs also echoed: "That is, our eldest grandson can't do it, and there must be no one in the academy." ”

Li Dongsheng looked at Changsun Hao with mocking eyes, walked over, pushed him aside, and said, "This is not necessarily, there is a kind of person in the world who was born for miracles." I hope some people don't break their promises and forget about their bets. As he spoke, he walked up to Mr. Ge and saluted, "Teacher, I've tried to make the answer, please check it." ”

The classmates were immediately excited, Li Dongsheng really made the question, which was amazing. Could it be that ghost drawing charms can also do arithmetic problems? Now everyone is looking at Teacher Ge eagerly, and he will say if he can go to Lichun Courtyard.

(End of chapter)

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