After class, she went back to the orphanage for lunch, and then slipped out again on the pretext of going to the bookstore to read reference books. But when she reached the intersection, she still hesitated and walked in the opposite direction, wanting to go to Zhuanzhu Lane to see Lao Lin again.
What she thought was that most office workers should take vacations on weekends anyway, and if Lao Lin still lives there, there is a high probability of being blocked by Lao Lin.
It's just that the plan couldn't keep up with the changes. When she passed the small park near the school, she was dragged by a familiar figure and couldn't walk.
At that time, many people gathered under a camphor tree in the park. The first thing that caught Lin Zhaoxi's attention was the shouting: "My materials are given to every competitor in the National Mathematical Olympiad. It is absolutely confidential..."
Then she saw her tsundere tablemate Lu Zhihao standing at the farthest edge of the crowd with a small schoolbag on his back, tiptoeing, opening his little frog wallet, as if counting money.
Lin Zhaoxi took two quick steps, patted his left shoulder, moved to his right and asked, "What are you doing?"
The flesh on Xiao Lu's face trembled violently, and he was shocked: "You are crazy."
"Hush!" Lin Zhaoxi put her index finger on her lips to signal Xiao Lu to keep her voice down, and then quietly asked, "What's the matter?"
Classmate Xiao Lu's eyes were weak, he glanced at the young man who was selling under the tree, and said, "Don't care about your business, go fast."
Lin Zhaoxi stood on tiptoe, followed his line of sight, and saw a man wearing gold-rimmed glasses.
The man's forehead hair was combed to the back of the ear, fixed with hairspray, and wearing a suit, the whole person looked shiny and eye-catching. And a small blackboard was nailed to the trunk of the man's camphor tree, and several math problems were written on the blackboard. There is also a big banner next to it, with the words "King of Mental Arithmetic" written on it, and the font is more sassy than "Chen Dayan Grilled Squid".
Not long after school ended, the parents picked up the children who had just finished their interest classes, and many of them were watching. Mainly the elderly, they were taken aback by the man who taught them the "mental algorithm". They sometimes looked at their grandchildren, and sometimes at the one who was hawking, as if they were about to pay for it.
Lin Zhaoxi understood.
After the development of the Internet, this kind of scam also deceived many parents. The most famous one is the "Zhougen item quick calculation" sold on TV shopping, a set of quick calculation for 1380 yuan. Going forward, in the 1980s and 1990s, Shi Fengshou's quick calculation was also popular for a long time. It claimed to be able to develop the brain, but it used the simple wish of the parents to hope that their children would become dragons and daughters. Parents flock to it.
In fact, there is no shortcut.
"Last time a parent came back to thank me, saying that he bought my book for his son to learn, and his son later won the gold medal in the Olympiad and insisted on giving me money. Do you know why he gave me money?" The sleek man dragged his tone, a gleam of light slipped across the lens.
"He said he wanted to buy out my method, that is, he would give me a large sum of money, and I would not be able to sell my algorithm in the future, so that his son would have no competitors in the future..."
"so bad."
"This kind of person is too bad."
The grandparents who were watching started shouting one after another, not knowing if there was any support hired by Mr. "Mental Arithmetic King".
The king of mental arithmetic said: "But I did not agree. I also think that this kind of person has bad intentions. My mental arithmetic is to benefit more students. Money is not important to me. I have too much money. I hope more Many children learn math well. So my price is very low, 100 yuan, 100 yuan for a set."
After that, he held up a booklet, the coated paper cover was shining in the sun. On his right there is a woman who takes money, a bill for a "cheat book". Some old people have already started to pay, and the little fat student Lu Zhihao swallowed his saliva, saved up the banknotes, and stared at the "Mental Arithmetic Cheats", as if he was struggling for the last time.
Lin Zhaoxi saw it. After the first few people paid the money, they took the booklet and left with gratitude. The woman next to the mental arithmetic king said nervously: "Mr. Zhang, there are not many books left. I only brought 30 books out this time." , you see..."
This sentence was like the straw that broke the camel's back.
A few old people were in a hurry and wanted to go up and pay.
The little fat man also gritted his teeth, and was about to sneak into the crowd when Lin Zhaoxi held him down and shook his head.
"What are you doing!" Lu Zhihao tried hard to break free from her hand.
"That's a liar." Lin Zhaoxi's voice was neither high nor low, but it was enough for many people around to hear.
"You understand again!" Lu Zhihao was very impatient, but he stopped and looked at her suspiciously.
The crowd was silent for a moment, and there was such a brief embarrassment under the tree.
Everyone looked at Lin Zhaoxi, including the "King of Mental Arithmetic" Mr. Zhang.
The mental arithmetic king stood at the back of the crowd, but he couldn't see who was calling him a liar. But that voice was very crisp and sweet. It sounded like a primary school girl, a primary school student, or a girl, what was he afraid of
"Little girl, you are too impulsive to talk like this. You will know it when you grow up. This kind of sloppy mouth will suffer in society."
Generally speaking, after he said this, ordinary people would know how powerful he was, and would not meddle in other people's affairs and would just shut up. But outside the crowd, the smiling voices did not stop asking: "Since Teacher Zhang wants to benefit the students, why don't you give it away for free?"
Mental arithmetic king: "Little girl, knowledge is power. There is no free lunch in this world. If you get something that is too cheap, will you not cherish it?"
"You mean, the knowledge of Arthur Benjamin, and the power of Michael Sheldon?"
The girl's voice was clear, like a lake sparkling in the sun, but it sounded extremely harsh to King of Mental Arithmetic. He pushed his glasses and saw a little girl coming out from behind the crowd.
He squinted his eyes, and scanned the little girl from beginning to end. He originally thought that a child from a rich family was well-informed, but he saw a little girl with ragged clothes and ripped shoes and bags, who was not as tall as him. Chest high.
The little girl looked poor all over her body, except for her eyes, which were very interesting, shiny black, with a half-smile, full of sarcasm.
"What's wrong?" the mental arithmetic king asked.
Seeing the counting king's appearance, Lin Zhaoxi knew that "what's the matter" was because he really didn't know who these two people were, and she was so full of mental calculations that she suddenly couldn't speak. She mentioned the names of these two people because they co-wrote this book, which systematically summarized various mental arithmetic methods. She had been watched by Lao Lin once, so she had a deep memory.
Now, she glanced at the hesitant grandparents around her, thinking about how to convince them of what she said next. But after a while, she found that the suspicious eyes of her grandparents were not directed at the mental arithmetic king, but at her, the brackets were mainly concentrated on her back. She just remembered that the words "Red Star Elementary School" were on the back of her school uniform, a student from a bad school, maybe it's not credible to say anything.
"It's like this. I've read a mental arithmetic book written by these two people before. It's available in Xinhua Bookstore. It's only 17.5. I don't know if it's very different from Teacher Zhang's book?" She was actually not sure about the version of the mental arithmetic king. She just copied the book co-authored by these two, but she glanced at the equation "13×13×13=2197" on the small blackboard, and continued, "I remember there is a formula for the cubic algorithm in it, I don't know if you So quickly figure out if you used this formula, 13×13×13 = (13-3)×13×(13+3)+3×3×13, which is 2197.” She paused, the expression on the face of the king of mental arithmetic It's not very good-looking anymore, there were slight doubts around her, she took a breath, and asked with a smile, "There is another method of counting with finger joints, I wonder if there is any in your book..."
The mental arithmetic king really interrupted her: "Have you read my book?"
"No, I'm poor and can't afford it. Your books are too expensive," she said.
Surrounded by grandparents, they cared more about money than young people.
"It seems a bit expensive."
"How many books can you buy with 100 yuan?"
They whispered to each other, and some people even took their grandchildren to visit Xinhua Bookstore.
The mental arithmetic king's face was livid, and he didn't say a word.
Lin Zhaoxi accepted it as soon as she saw it, and was going to run away immediately if Mr. Wang didn't pay attention.
However, her small Jianghu is still no match for the "old Jianghu".
As soon as she turned around, she heard the king of mental arithmetic say: "The kid is very good, so did you read the mental arithmetic book that gave you what is 92960675÷78?"
Lin Zhaoxi stopped, her heart trembled, she understood. Mr. Zhang has been around the rivers and lakes for many years. Of course, he has encountered a lot of troublemakers. He has prepared many countermeasures, such as memorizing the answer to an arithmetic problem at random to prove that he is indeed a master of quick calculations.
She turned around and looked up at the man's proud face, unable to answer for a while.
The surroundings were very quiet, only the rustling of the wind blowing through the camphor trees. Everyone looked at her, waiting for her answer.
Lin Zhaoxi pursed her lips and frowned, just when she was about to say the words "I don't know", a very clear and calm boy's voice sounded from outside the crowd.
"1191803.525641."