"The student has a similar question to ask sir. Pen "Fun" Pavilion www.biquge.info"

Regardless of the reaction of the others, he continued: "Chickens, ducks and rabbits are in the same cage, with a total of seventy-eight legs. There are nine more rabbits than ducks, and twice as many ducks than chickens. Ask how many chickens, ducks and rabbits there are. ”

Jia Qing didn't know if Qian Jingrun would solve it. This kind of question is obviously not easy to do with the method that Liu Hong talked about before, but as long as you master the method, it is also a very simple topic.

But in any case, it is more complicated than the question he asked. If Qian Jingrun can solve it, he is still ready to throw out a more difficult question, and he must lose face today.

It's been almost five years since I've been in this world, and I've been reading books for almost five years, so I don't have to worry about anything if I'm a demon, and three words can explain everything!

A classmate who defended Qian Jingrun stood up and said, "Jia Qing, you said such a strange topic to make Mr. Qian difficult, do you still have the word respect for the teacher in your eyes?" Besides, will you solve it? ”

Jia Qing didn't even look at him. Honoring the teacher? Of course he respects his teacher! But what he respects is a teacher who respects students, and Qian Jingrun punishes him for standing without saying anything, and he has been listed as a teacher who is not worthy of respect.

Instead, Qian Jingrun waved his hand indifferently and motioned for him to sit down. Then he looked at Jia Qing and said, "This is also solved by using the Tianyuan technique?" ”

Jia Qingdao: "I don't know anything about Tianyuan, I call it equations." ”

Qian Jingrun was surprised: "Do you really know how to solve it?" ”

After hesitating for a moment, Qian Jingrun continued: "There are three yuan I don't know about this question, and I ...... for a while I don't understand, and I ask classmate Jia for advice......" said and made a gesture of asking for advice, and bowed slightly.

"Mr. ......"

At this time, Liu Hong also stood up.

Jia Qing was also surprised, he wouldn't understand that Jia Qing could expect it, but he directly admitted and bluntly said that asking Jia Qing for advice would surprise Jia Qing. Hurriedly quit his seat, and returned the salute with a deeper latitude: "Mr. is serious, and the student doesn't dare to accept it." ”

Before he said it, Qian Jingrun did hesitate a little, but as soon as the words came out, he was relieved. Hearing this, he said: "Since the ancient masters, first, if you know what I can't do, what if you are worshiped by me?" But if you are talking nonsense, you will stand in my class from now on. ”

Mother, you're getting more and more threatening, aren't you? It seems that it will not work without showing the sword......

Just as Jia Qing was about to step forward to write the answer, he turned back again.

"Why, you won't? Then move your stool to the back so as not to block the classmates behind.

Jia Qing's expression was stunned when he heard this, but he still had to ask his own question: "Why did Mr. punish me before?" ”

Qian Jingrun looked at the doubts in Jia Qing's eyes, and then doubted his judgment, and asked rhetorically: "Why did you recite Jiujiu backwards, did someone teach you like this?" ”

Uh, that's right...... There's really no one to teach! When Jia Jing was teaching Jia Qing, he found that Jia Qing knew basic arithmetic, he thought it was taught by Yu Yuanchen, so he didn't think about telling Jia Qing about this aspect again, anyway, arithmetic is not important......

And Yu Yuanchen thought that Jia Jing was teaching Jia Qing in private, so he didn't pay attention to it......

"Oh, no one teaches, no one teaches, it's the students who think it's easier to memorize like this." Jia Qing said and turned his head to the front. Leaving Qian Jingrun behind, he said, "Nonsense!" ”

After that, Jia Qing showed this simple ternary system of equations in front of this era. Immediately, Jia Qing found that other people, including Liu Hong, were completely unfamiliar with this. It's Qian Jingrun, he can basically understand those equations, but he can't solve them......

After careful questioning, Jia Qing found that there were really equations in this era, but the means of solving the equations were very poor, because there was no concept of unknowns, so Qian Jingrun would not "eliminate the yuan method", but only "direct division......

This is a warning to Jia Qing, don't pretend to be forced everywhere in the future, maybe you will be slapped in the face by a master.

However, Qian Jingrun doesn't have the slightest intention of teaching Jia Qing, what are you kidding, this is a prodigy! With his talent for arithmetic, he will definitely be able to make great achievements in arithmetic.

Qian Jingrun was ready to cross Jia Qing to enter the arithmetic course. Therefore, the subsequent class basically became a private exchange meeting between Jia Qing and him, and the others became decorations......

"Are you willing to learn arithmetic further, I can recommend you to my teacher, he is ten times better than me in arithmetic, now that Nanjian is the secretary, he will definitely accept you, how about it, are you willing?"

Seeing that dinner was about to be eaten, and it was almost time to get out of school, Qian Jingrun said.

However, Jia Qing will definitely not agree, regardless of whether arithmetic can help him. It's the "arithmetic master", to put it mildly, it's not certain who teaches whom. However, after more than an hour of communication, his impression of Qian Jingrun has completely changed. So he politely refused: "Thank you Mr. Qian for your kindness, but my father ordered the students to take the imperial examination, and there may not be much time to study arithmetic." ”

Originally, arithmetic was not tested in the imperial examination, and the reason why the northern and southern prisons still kept arithmetic was just to make the inmates have more skills, after all, if they entered the household department or even the military department in the future, they would not be able to do arithmetic, and they would also have great constraints. Moreover, the proportion of arithmetic courses in Guozijian is also the smallest.

Qian Jingrun understood what Jia Qing meant, and he had no ability to change this situation, but he still said: "I will write a letter to the teacher, and it will be beneficial for you to visit Jiangnan in the future." ”

"That's it, sir."

……

As soon as the early spring season passes, it is mid-spring February.

The February poetry meeting of Guozijian is scheduled for the second day of February. It's a good day, known in ancient times as the day the dragon raised its head.

Behind the area of the school building in the Guozijian, there is a piece of broken ground, which is specially used by the Guozijian for spring outings. At this time, this piece of broken land is full of green grass and spring.

Especially in the early morning, the breeze is mixed with drizzle, and the occasional blooming flowers stand in the sun.

Walking inside, like a poem:

Sometimes it rains at three o'clock or two,

Ten flowers and five flowers everywhere.

Jia Qing, Xie Guowei, Qi Chengwu and Hou Hu also came here.

Although Hou Hu and Qi Chengwu are almost equal to zero, they are also willing to come to join in the fun during the important activities of this country.

The poetry meeting is very casual, and anyone who is a student in the prison can participate. As long as you write your work on the inkstone at the end of the hour (9 to 11 o'clock) and hand it to the gentleman in the viewing pavilion above.

No limit to the question, no limit to the rhyme, no limit to the number.

The whole morning is free time, and at noon, we will focus on the comments and select the top 10 works.

There are about eight or nine hundred people in the entire country, and although it is impossible for all of them to participate, it also makes this sloping land of less than 100 acres seem lively.

"Mr. Jia!"

Jia Qing and the others looked back, but it was Qian Jingrun. So they saluted him together and said, "I've seen Mr. Qian." ”

After that, Jia Qing complained: "Mr. Qian, don't torture the juniors, how can there be a teacher who calls the juniors, it's too unpleasant to be heard by others." Just call the juniors by their names. ”

Since the last time he showed some arithmetic "talent", Qian Jingrun often asked Jia Qing to discuss arithmetic. After going back and forth, Qian Jingrun found that Jia Qing's mind was like a treasure, and releasing Buddha could give him endless inspiration. So he began to frantically ask Jia Qing all kinds of questions.

Although Jia Qing can't answer them all, he can always come up with unique ideas that he has never heard of.

No, since a few days ago, I don't call him classmate Jia when we meet, just Mr. Jia.

Qian Jingrun ignored it and said, "Since ancient times, the master is a teacher, you listen to my class and call me Mr. Qian." I'm asking you questions in private, so why don't you call you sir? Don't be held back by hypocrisy! ”