my scientific age

Chapter 42 The Imperial City Roots Bookstore
From simple to easy, from easy to difficult.

This is a step-by-step process, and the core reason why the title sea tactics can quickly improve your grades in a short period of time is this.

A large number of math problems of the same type are given, and the difficulty is gradually increased to enable the solvers to master the relevant knowledge points and improve the speed of solving the problems.

Of course, the advantages and disadvantages of the title sea tactics are very obvious. The advantage is to improve the performance, and the disadvantage is that it will consume a lot of precious time.

However, can the time of learning scum be called precious?

Yu Hua believes that the most important thing for Tan Qing is time. There are still a few months left, and the tactics of the sea of ​​​​questions are more useful than any learning strategy.

This weekend, it was noon. When the school was on vacation, some students left school to go home to visit relatives, while the rest of the students either stayed in the dormitory to rest or went to the library to study.

Tan Qing carefully studied the problem-solving ideas given by Yu Hua, and gradually understood the essence of the wrong questions on the draft paper like peeling off the cocoon. Five or ten minutes later, at one o'clock in the afternoon, the third class of the day was over.

Yu Hua put down the pen, and put the draft of more than [-] pages of math problems in front of Tan Qing. His words showed seriousness: "Hanzhi, your task today is to finish these problems, and you can't sleep until you finish them."

It took Yu Hua five to ten minutes to write about forty basic elementary function questions. Some of these questions were randomly compiled by Yu Hua, and some were function questions from memory. They came from the Jiangxi volume, Jiangsu volume, and Sichuan province There is a relationship between the title and the title, and the difficulty increases slowly.

As long as you finish these forty questions, you will basically be able to master the comprehensive knowledge points about basic elementary functions, thereby improving Tan Qing's mathematical foundation.

"Okay, I'll finish it." Tan Qing looked at the brand-new draft on the table, swallowed his throat, took a deep breath, and his eyes were firm and serious.

"That's good, let's do it first, today's homework tutoring is here for the time being, I'll go first." Yu Hua smiled slightly when he saw this, and after instructing, took out the schoolbag with various items from the drawer, bid farewell to Tan Qing, Get up and leave.

According to the original plan, today he is going to go out to a bookstore or printing house to print a collection of incorrect math problems.

After three days of preparation, Yu Hua, who was extremely efficient, took advantage of the spare time to sort out various types of math problems, from the first draft to the official version.

Today is the birth day of Yu Hua's edition of Mathematical Mistakes Collection.

Yu Hua left, carrying a schoolbag, with anticipation and longing in his heart. He is about to leave the first item of his own in this era and take the first step towards the future.

The set of wrong questions in mathematics is small, but the life that belongs to the Republic of China is very large.

After leaving the classroom, Yu Hua went straight to the gate of No. [-] Middle School.

……

The classroom was quiet and cold, with only Tan Qing left.

"Don't sleep until you finish..." The sound of footsteps drifting away in the corridor outside disappeared. Tan Qing turned his eyes to the table, looking at the brand-new draft book full of math problems, his scalp felt numb, and his mind recalled Yu Hua's Instructed, take a deep breath.

Tan Qing was very aware of the number of questions that Yu Hua set up. He thought that the number of questions was small, but he never thought that he would watch Yu Hua directly use half of a brand-new draft book.

God, that's a full half!
The ghost knows how Yu Hua did it.

The mood was quite heavy. After a few seconds, Yu Hua's firm and confident eyes appeared in Tan Qing's mind. He gritted his teeth, adjusted his state, cleared his emotions, picked up the pencil in his right hand, and looked down at the draft.

Complaining is pointless, sadness is pointless.

Since it is the path of your own choice, then you have no regrets and no regrets, and go on unswervingly.

Turning his attention to the first math problem in the draft book, he thought it was difficult, but after taking a look at it, Tan Qing's eyes suddenly lit up.

simple.

Write down the answer by three, five, and two. The first question is the simplest basic elementary function question. After finishing it, Tan Qing can be very sure that he has answered correctly, and he can't help but build a little confidence in his heart.

Looking down, Tan Qing glanced at the second question. He felt that the question was a little familiar, and his brows were slightly wrinkled. He suddenly remembered the knowledge points Yu Hua explained on the first day, and his mind suddenly came to a realization.

It turned out to be the case.

The idea of ​​solving the problem is there, and the formula is applied, and the writing is called a handy one.

Fluent and free, less than 2 minutes, the second question has been written.

"Student Yu Hua, you really worked hard, Han Zhi will never forget your intentions."

After solving the second question, which was slightly more difficult, Tan Qing looked at the question on the scratch paper, but he still didn't understand Yu Hua's intention for such a question. He was moved and remembered silently.

Yu Hua specially took care of his mathematics level. From simple to easy, the difficulty gradually increased, but it would not exceed his current level.

As long as you pay attention, you can definitely figure it out.

It's really exhausting to ask such a question.

He felt that the tutoring effect of the private Nankai University lecturer hired during the winter vacation at home was not as effective as Yu Hua, a classmate.

After taking down two math problems like the enemy's fortress, Tan Qing had built up initial confidence in his heart, his eyes were clear and translucent, and a steady stream of fighting spirit poured out of his heart.

In this case, we must not disappoint Yu Hua's wishes.

Brush questions!

Brush questions to improve your grades!
"70 points, 70 points, Tan Qing, you can definitely do it."

……

The sky is clear in the afternoon.

A round of warm sun hangs in the sky, releasing a steady stream of warmth.

There are five districts in the north of the city, Beibing Hutong, Huangchenggen Bookstore.

Yu Hua stood in front of the imperial bookstore, looking at the yard in front of him, which was not as big as Chongwen's house, the mottled and almost decayed wooden door, the door that didn't look like it, and the right side of the door stood a piece full of vicissitudes and traces of time. The house number - Huangchenggen Bookstore of Peiping City.

Through the open door, there were some workers and foreman in gray robes busy. In the center of the yard stood a middle-aged man in a robe and a jacket, looking like a manager.

"It fits my needs." Yu Hua looked at the Huangchenggen Bookstore in front of him, the corners of his mouth twitched slightly, he couldn't help holding his forehead, he felt helpless, thought for a while, sighed, and left without turning around.

Come here, too lazy to find another home.

To be honest, if it wasn't for the repeated affirmation of the road guide just now, Yu Hua really couldn't believe that this was the famous pirate at the gate of Peking No. [-] Middle School, Huangchenggen Bookstore.

Is this a bookstore?

It is clearly a printing workshop.

Still small can't get any smaller.

Well, no matter what, as long as you can print a set of math wrong questions, Yu Hua doesn't ask for much.

Huangchenggen Bookstore can be said to be well-known in the piracy market of major schools in Peiping. It belongs to the backbone of the field of piracy. It used to be famous for the Paris Saint-Papa Academy in Peiping. In the hands of the bookstore, when other pirates were still playing with a famous book and split it into five copies, Huangchenggen Bookstore directly played the adaptation of the famous book.

The famous story that originally praised the kindness, friendship, and self-sacrifice of the people of the lower classes turned into a story of a feudal merchant who walked in Paris in the fifteenth century and finally established the Saint-Father in Paris. The courage to change the famous book is enough to praise.

Yu Hua glanced at this book, but he had never read it. As for "How Steel Is Tempered", Yu Hua had never read it.

Well, no courage.

However, Yu Hua really did not expect that the famous Huangchenggen Bookstore was just such a small printing workshop.

(End of this chapter)