Chapter 12: River and lake

After class, she went back to the welfare home for lunch, and then excused to go to the bookstore to read the reference book and slip out. However, when she reached the intersection, she hesitated and went in the opposite direction. She wanted to go to the lanes and look at Lao Lin.
What she thinks is that, on any weekend, most office workers should take a vacation. If Lao Lin still lives there, the probability of blocking the old forest is very high.
It was 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 eye and couldn't walk.
At that time, a lot of people were surrounded by a camphor tree in the park. The first thing that attracted Lin’s attention was the selling voice:
My material is a national Olympics contestant’s hand, absolutely confidential...

Then she saw her arrogant tablecloth Lu Zhihao's children standing on the crowd with a small bag, squatting and opening his little frog wallet, like counting money.
Lin rushed two steps, patted his left shoulder and leaned to the right and asked, "What are you doing?"
The meat on Xiao Lu’s face trembled and scared a big jump:
You are sick.


Hey!
Lin Chaoxi put his index finger on his lips and gestured to Xiaolu’s classmates to whisper, then quietly asked,
How?~~?

Xiao Lu’s eyes were faint. He blinked at the young people who were selling under the tree and said,
No matter what you do, go quickly.

Lin squatted and looked down at him and saw a man wearing gold-rimmed glasses.
The man's forehead is combed to the ear, fixed with hair gel, and wearing a suit, the whole person looks shiny and bright, very eye-catching. On the man's toon tree trunk, there is a small blackboard, and there are several math problems on the blackboard. There is also a big banner next to it, the letter "heart counting king" three words, the font is more cool than "Chen Dayan grilled squid".
Shortly after the school was out of school, the parents received the children who had just finished the interest class, and many people were watching. With the elderly as the mainstay, they are taught by the "heart algorithm" man, and sometimes look at their grandchildren, and sometimes look at the person who is selling, the eyes are ready to save money.
Lin Zhaoxi’s heart is clear.
After the Internet developed, this scam also deceived many parents. The most famous one is the "Zhou Genxiang quick calculation" sold by TV shopping, and a speed algorithm of 1380 yuan. Going forward, in the mid-1980s, Shi Feng’s quick calculations have also been popular for a long time. He claims to be able to develop his brain. He is only using the simple wish of the parents to look forward to seeing a woman into a phoenix, a virtual shortcut on the road to mathematics. Parents are eager to go.
In fact, there are shortcuts.
"The last time a parent came back to thank me, saying that he bought my book for his son to learn. The son later took the gold medal of the Jinbei Olympics. I have to give me money. Do you know why he is giving me money?" The oily and sleek man drags the tune and a glimmer of light shines through the lens.
"He said that to buy out this method is to give me a lot of money. I can't sell my algorithm in the future, so that his son will have no competitors in the future..."
"so bad."
"This kind of person is too bad."
The grandparents who were listening were screaming, and I don’t know if there was any one hired by Mr. Wang.
The mental arithmetic king said: "But I did not agree, I also feel that this kind of person is bad, my heart algorithm is to benefit more students. Money is not important to me, I have too much money, I hope more Many children study mathematics well, so my pricing is very low, 100, a set of 100."
After all, he raised a booklet and the cover of the coated paper glowed in the sun. On the right hand side, a woman collects money and collects a banknote for a "cheat". Some old people have begun to pay, and the little fat man Lu Zhihao swallowed his mouth, tightened the banknotes, and stared at the "Knowledge of the Heart", as if he was struggling with what he was doing.
Lin Zhaoxi looked in his eyes. When the first few people handed over the money, Qian Xun Wan took the booklet and left, and the woman next to the mentally minded king said very nervously: "Mr. Zhang, the rest of the books are not much, I only brought 30 out this time. , look..."
This sentence is like the last straw that crushes the camel.
A few old people are in a hurry and have to pay for it.
The little fat man also bite his teeth and is about to get into the pile of people. Lin held his hand and shook his head.
"What are you doing!" Lu Zhihao tried hard to get rid of her hand.
"That is a liar." Lin Chaoxi's voice is not high or low, but enough for many people around to hear.
"You understand!" Lu Zhihao was very impatient, but his footsteps stopped and looked at her suspiciously.
When the crowd was quiet, there was such a short embarrassment under the tree.
Everyone looked at Lin Chaoxi, including the teacher of "King of Hearts" Zhang.
The mentally minded king is standing in the crowd. In fact, he can't see who is saying that he is a liar. But the voice is very crisp and sweet. It sounds like a primary school girl, a primary school student, or a girl. What is he afraid of?
"Little girl, you are so impulsive to say this. You will know when you grow up. This mouth of mouth is in the society to suffer."
Generally speaking, after he said this, ordinary people know that it is very powerful, and they will only shut up when they are nosy. But outside the crowd, the laughter of Yingyingying did not stop: "Since Teacher Zhang wants to benefit the students, why don't you send it for free?"
Mental arithmetic king: "Little girl, knowledge is power, there is no free lunch in this world, too cheap things, will you not cherish your hand?"
"You mean, the knowledge of Arthur Benjamin, and the power of Michael Shelton?"
The girl's voice is clear, like the sparkling lake in the sun, but the heart of the mind is extremely harsh. He pushed the glasses and saw a little girl coming out of the crowd.
He narrowed his eyes and swept the little girl from start to finish. He thought that the rich children had a lot of knowledge, but he saw a little girl whose clothes were very broken and he couldn’t reach him. The chest is high.
The little girl has a lot of sourness on her body, but the eyes are very interesting, and the black hair is bright, like a smile, and a mockery.
"What's wrong?"
Looking at the mind-minded king, Lin Congxi knows this sentence "what's wrong" because he really doesn't know who these two people are, and her psychologically calculated stomach suddenly can't be said. The names of the two people she said were because the two co-authored the book and systematically summarized various mental arithmetic methods. She was once looked at by Lin Lin, so she had a deep memory.
Now, she swept her grandparents around the hesitation, thinking about what to do to make them believe what they said next. However, after a while, she found that the skeptical eyes of grandparents were not directed at the king, but directed at her, brackets, mainly concentrated on her back. She only remembered that there was a word "Red Star Elementary School" behind her school uniform. The students in the school may not be too credible.
"This is the case. I have read a mental arithmetic book written by these two people. The Xinhua Bookstore has only 17.5. Do you know that there is a big difference between this and Zhang?" She is not sure about the version of the mental arithmetic king. It was the copy of the two co-authored books, but she looked at the equation of "13x13x13=2197" on the small blackboard and continued, "I remember the formula of the cube algorithm, I don't know how fast you calculate it. Did you use this formula, 13x13x13=(13-3)x13x(13+3)+3x3x13, which is 2197.
She paused, and the mentally-king king’s face was not so good, there was a slight suspicion around her, she sucked With a sigh of relief, he asked with a smile. "There is also a way to count with the finger joints. I don't know if there is any in your book..."
The mental arithmetic Wang Guo really interrupted her: "Have you seen my book?"
"No, I am poor, I can't afford it, your book is too expensive," she said.
Surrounded by grandparents, they care more about money than young people.
"It seems to be a bit expensive."
"How many books can I buy for 100 yuan?"
They whispered and whispered, and even some people have already taken their grandchildren to go to Xinhua Bookstore.
The heart of the mentally minded king is blue and green, and I don’t say a word.
I’m going to see you when I’m in the morning, I’m going to take care of it, and I’m not paying attention to it.
However, her small rivers and lakes are still more than "old rivers and lakes."
When she just turned around, she listened to the heart-calculating king and said, "The children are very powerful. Is there any mental arithmetic book you read that gave you 92,960,675?78?"
Lin dynasty stopped, and my heart glimpsed and understood. Teacher Zhang has been walking in the rivers and lakes for many years. Of course, I have encountered many people in the field. I have already prepared a lot of countermeasures, such as just remembering the answer to an arithmetic question to prove that I am indeed a quick master.
She turned and looked up at the man's proud face, unable to answer for a while.
The surroundings were very quiet, only the wind blew through the rustle of the eucalyptus, everyone looked at her and waited for her answer.
Lin Chaoxi licked her lips and frowned. Just when she was going to say "I don't know", a very clear and calm boy voice sounded from outside the crowd.
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