Qin Feng read Dahua's popular novels, and he was surprised. It is full of strange stories, some of which are legends, and some of which are artistically processed. Most of them are reversed plots, and they also carry some customs and customs.

Qin Feng was watching with relish, and Jia Song came over: "Sir, forget it." Do you have the right answer? ”

Qin Feng put down the novel, glanced at Jia Song and said, "How can I have an answer to my nonsense question?" ”

Jia Song's heart was suffocated, and he almost spurted out a mouthful of old blood and vomited all over his body...... I have worked hard for most of the hour to make it! Sir only asks questions, whether it is right or wrong?

Qin Feng then said, "However, I can do it once using the method I taught you." You're going to have to see it clearly. ”

Jia Song choked again and said, "I'll repeat the topic of Mr.?" Sir do it once? ”

Qin Feng nodded: "That's right!" To make it easier for you to understand my calculations. I'll teach you a few symbols, a few equations, and a vertical calculation, and I'll write it down for you and explain it clearly. You listen clearly, look carefully, I'll only speak once. ”

Qin Feng explained on a piece of paper while writing with charcoal: "This means, add." This symbol indicates, minus ...... In this arrangement, these two numbers are added together...... The numbers are relatively large, and we use vertical calculations, vertical styles. The advantage of vertical is that no matter how large the number is added or subtracted, you only need to calculate the odd number, full of ten into one, less than one to borrow, and your abacus is almost exactly the same! That's it...... Subtract...... Equal to ......"

Qin Feng glanced sideways at Jia Song: "Understood?" Come on! You read the question. Read it and see how I calculate! ”

"Yes, sir." Jia Song, for the first time in his life, was so focused.

Jia Song picked up his record book: "Fifteen pieces of cloth are imported on the first day of the new year, each piece of cloth is sold at a price of two taels, and the sales are ......."

Qin Feng is directly below the word "cloth", write a 15, a multiplication sign after it, and a 2. Write a 30 on your hand. When I heard about the sale, I made a note of it again......

In fact, this is the simplest addition, subtraction, multiplication and division in the first and second grades of primary school.

Jia Song uses Chinese characters to record, calculate. Chinese characters cannot be used in vertical form, equation. It can only be added and subtracted one by one, and finally summarized. The process is very tedious.

And Arabic numerals, vertical, and equations, can be done at the same time, recorded, calculated, and counted.

Qin Feng calculates as he writes, and summarizes at any time. These are all calculations within 100, and Qin Feng calculated faster than Jia Song's reading questions. After reading Jia Song's question, Qin Feng had already finished calculating, and threw the charcoal pen casually: "OK! Jia Song, I have already demonstrated it to you completely!" I just taught you all the methods I used! Take it and study it yourself! It's up to you how much you can perceive! ”

Jia Song took two steps to his seat, turned around and asked, "Sir, what do you mean?" ”

"Meaning, good! Female is O, male is K, two into one, it is good! By the way, speaking of which, do you have a spring palace diagram? Bring me insight? ”

Jia Song stumbled, he didn't understand Mr. 's explanation at all. I didn't dare to ask any more questions at the moment, and replied: "Sir, I don't, I can't hide it at home." But I know, where is it sold, I'll take my husband to see it another day? ”

“OK!”

Jia Song took Qin Feng's arithmetic paper, compared it with himself line by line, and compared it with the topic. Slowly. His heart began to stir up......

Mr. Qin's calculation method is too novel. Jia Song had never heard of it, but the more he knew, the more convenient and quick it became. Compared to what I have learned before, it is indeed very different.

In the past, the records were settled, and the paper was full of large letters, like a moral essay.

Taught by Mr. Qin, the paper is concise. Record, calculate, total, summarize, at a glance.

In and out of the balance, the formula, the ins and outs of the stroke.

There is also vertical calculation, which is like putting an abacus on a piece of paper to dial. These tadpole texts taught by Mr. are simply gods!

Jia Song has already figured out the mystery......

In today's world, no matter how profound, perfect and charming the native language you use. But in the face of mathematics, there is only one script in the world, Arabic numerals!

From this it follows that this is the most perfect mathematical text, and nothing else.

This morning was the most serious morning in Jia Song's history. It was also him who gained the most and felt the most fulfilling morning.

When it was time for lunch, Qin Feng had already left the classroom, and Jia Song was still studying. He had learned to calculate the way his husband did, and it was the critical moment of the harvest that he was reluctant to leave the classroom.

Ruyi ran to ask Jia Song to have lunch, but was stopped by Qin Feng. Ruyi walked outside the classroom door and looked at it, immediately looked surprised, turned around and ran to the inner courtyard!

Soon, Mrs. Jia and Jia Jingmin followed Ruyi to the door of the classroom. The three of them were outside the classroom, watching Jia Song crouching on the table and writing and drawing...... Look at the paper on the left hand side for a while, and use it again for a while, charcoal! Writing with charcoal, then smiling on his face, and bowing his head to write and draw......

Mrs. Jia's nose was sour, and two lines of tears flowed. The three women stood silently outside the door, watching Jia Song sit on the desk......

Qin Feng also silently enjoyed lunch in his room.

The dishes of the Jia family are quite hearty. It's just the taste, it's too light. Or go to the kitchen later, find Master Tang, Sister-in-law Tang, let's discuss it and see if we can make a hot pot.

There is no cutscene for a one-person meal, and it is relatively fast. Qin Feng was half-lying on the chair, picking his teeth with willow branches, while crossing Erlang's legs to ponder the hot pot.

The figure outside the door swayed, and Ruyi said outside: "Is Mr. Qin here?" ”

"Ruyi, the door is open, come in by yourself." Qin Feng replied very casually. Ruyi delivers meals, cleans up the table after meals, and everyone is used to going in and out.

Ruyi came in, Qin Feng smiled sideways, and was about to gossip. saw Mrs. Jia, and Miss Jia followed. Qin Feng groaned, and hurriedly jumped up from the chair to greet him.

Miss Jia saw Qin Feng jumping down from the chair exaggeratedly, and her eyes didn't forget to peek at herself. A trace of annoyance in my heart: this villain, his eyes are still so slight. Thinking of what my mother said, I felt a little aggrieved. I couldn't help but glare.

Qin Feng was stunned by Miss Jia's staring at her, and hurriedly looked away, beating a small drum in his heart: Where did I offend her? Or did she know about my intentions? Or, just annoyed that I peeked at her? Alas! Thinking about my previous life society, if a boy secretly looked at a girl, not all girls would be proud, and their faces would be proud. At most, snort and walk away with your neck tilted?

Jia Jingmin saw Qin Feng's gaze fleeing, and a trace of pride flashed in her heart. Then he looked Qin Feng up and down with a puzzled face. Jia Song's learning attitude just now was too selfless, which made Miss Jia a little suspicious.

Mrs. Jia came in, but she was happy. Can't wait to set up the chair. said to Qin Feng: "Thank you Mr. Qin, that kid Jia Song, actually, he is actually studying seriously!" It's really surprising, this is all taught by Mr. Qin. ”

The expressions of the two reminded Qin Feng, and Qin Feng said with a straight face: "Mrs. Jia, I just happened to teach Jia Song what Jia Song was interested in today, so I must not have too high expectations." ”

Ruyi placed the chair, Mrs. Jia sat down, and beckoned Qin Feng to sit down, before nodding and saying, "Mr. Qin is relieved, as long as Jia Song has the heart to study, it means that he understands the reason." As for what to learn, we have long lost hope. Mr. Qin led him to the right path, and he taught him more arts and sciences than he did, which was also gratifying. If he can know what is going on, and stop being as muddy as he used to be, we will be satisfied! So I came to thank you, sir. Don't worry too much, sir. ”

Qin Feng breathed a sigh of relief, it was good to be able to understand this matter, the greater the hope, the greater the disappointment. He already plans to pursue Jia Jingmin, and if he gives him an extravagant hope, it will be an obstacle in the future. It's better to be realistic. Having said that, I'm also a credit, so why did she stare at me just now?

Unconvinced, he peeked at Jia Jingmin again, but Jia Jingmin looked puzzled, her mouth was tightly closed, and her lower lips were slightly wrapped around her upper lip. Qin Feng was fascinated, these lips are so X-feeling! This countenance is really pitiful for me......

Miss Jia was also examining Qin Feng, and bumped into Qin Feng's thief's eyes again, Jia Jingmin's eyes widened, Qin Feng's heart trembled, his male body was agitated, and he looked away.

If people have a plan, they must be weak-hearted.

Miss Jia won again with her gaze, her head raised slightly, and the corners of her mouth curved slightly......

After Qin Feng's eyes fled in embarrassment, he regretted it a little, what am I doing? What am I afraid of? Can she still eat me? I was a little angry in my heart, secretly ruthless, daring to stare at me? It's not a small amount of courage! See how I stole you! Ouch, it's exciting to think about! Miss Steal!

The battle between eyes was only instantaneous, and Mrs. Jia didn't seem to notice it, and saw that there were still some leftovers on Qin Feng's table. Mrs. Jia smiled and asked, "Mr. Qin, in the past two days, do you think the food is delicious?" ”

"Mrs. Jia was polite, the meal was very good, I was very satisfied. If I want to change my taste in the future, I will tell Ruyi. ”

"That's good, that's good. But sir, why is Jia Song writing with charcoal? ”

"Today's arithmetic, charcoal records are faster, with Jia Song's current calculation speed, using a brush to delay time."

"Oh? Jia Song is so big? Mrs. Jia was surprised and delighted.

"Sir! I changed all the numbers in the question, and then I did it again the same way you did! I learned! Jia Song rushed in with a few pieces of paper in his hand and an excited face. But I saw a room full of people turning around, turning their heads sideways, looking up, staring at him alone......

Jia Jingmin was closest to him, and stretched out his hand: "I'll take a look." ”

Jia Song's mouth was deflated: "Here you go, you can't understand it?!" ”

Jia Jingmin's eyes widened and she was about to speak, Jia Song said: "Otherwise, let's compare, see who, settle accounts quickly!" ”

If you learn a new skill, you have to show off. Showing off can generate motivation for learning.

"Okay, better than ever!" Jia Jingmin is trying to compare Jia Song to see if this kid is playing with Qin Feng for everyone to see. A naughty boy suddenly becomes a diligent student, the change is too fast, he is unpopular, and he is not suspicious!

Moreover, you can also expose Mr. Qin's true face, this villain, sneaking around and watching people! Isn't it good to be above board?

Mrs. Jia stood up with a smile on her face: "Okay, you two have to compare, and we will compare in the yard later." Now let's all go! Don't disturb Mr. Qin's lunch break. ”

Mrs. Jia was also a little worried. In case it is really Mr. colluding with the students, making a play to make everyone happy. Exposed in person, Mr. Qin was embarrassed......