Chapter 1, the problem of chickens and rabbits in the same cage

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In 2000, in the second class of the fourth grade of an elementary school in City A, a little girl with two pigtails and a baby fat face blinked, blinking her long eyelashes, looked at the math problems on the blackboard and meditated.

"Did any of the students take the initiative to raise their hands on the podium to solve the problem? If not, the teacher will name him! Teacher Li raised his hand to hold the glasses on the bridge of his nose, and his gaze seemed to envelop the entire class.

The blackboard said that there were 15 chickens and rabbits, with a total of 40 legs, and asked how many chickens and rabbits there were.

Mr. Li put down the chalk in his hand, put his hand behind his back, and walked to the side of the podium.

As soon as the teacher's voice fell, the little girl closed her eyes and began to chant words in her mouth, "Jade Emperor and Queen Mother, bless and bless, don't draw me, bless you......"

"Li Qingqing, the Jade Emperor and the Queen Mother don't care about learning, you should worship ......"

Before the boy sitting behind the little girl finished speaking, he heard Teacher Li say, "Li Qingqing, you go to the blackboard to do this question." ”

Li Qingqing opened her eyes suddenly, "Teacher, I'm not asleep!" ”

The whole class burst into laughter, Mr. Li is an old teacher, he looks like he is in his 50s, and his teaching is rigorous and serious, because he is not smiling, he always wears a Mao suit, with a Mediterranean hairstyle, which does not look too gentle, and Mr. Li was only transferred to teach them this semester, and the teachers and students are not familiar enough, so the classmates in the class are a little afraid of him.

Under Mr. Li's expressionless face and shocking eyes, the laughter was gone, and Li Qingqing stood on the seat, one small hand nervously clenching the corner of her clothes, and the other hand poked at her tablemate, a chubby boy.

"5 rabbits, 10 chickens." After Li Qingqing's tablemate said this, he covered his mouth with his chubby little hand and pretended to cough twice.

Li Qingqing moved her little ears, her heart was settled, but there was a heroic expression on her face, and the little fat man's eyebrows jumped twice when he saw it.

Li Qingqing walked up to the podium step by step, took a piece of chalk, and wrote down a big "solution", but what are the things written next?

I saw that the blackboard said that the rabbit has 4 legs and the chicken has 2 legs, so there are 5 rabbits and 10 chickens.

After writing, Li Qingqing looked at her beautiful chalk words, nodded, and grinned, secretly thinking that the teacher should be in a good mood when she looked at this beautiful word.

"Li Qingqing, you write out the process of solving the problem." Teacher Li's voice sounded behind him.

Li Qingqing pursed her lips, her beautiful eyes flashed with a sly light, and she turned to face Teacher Li, because of her height, Teacher Li couldn't see her small movements.

"Teacher, I don't know how to write the process of solving this kind of problem, because when I see the problem, I know how many chickens and rabbits there are?" Li Qingqing looked up and smiled at Teacher Li.

Teacher Li obviously didn't believe it, "Really? Then let me ask you, there are 36 heads and 94 legs, how many chickens and rabbits are there? ”

Li Qingqing knocked her head slightly, but her eyes glanced away, only to see the little fat man put the little fat hand on his chest, turning it into the shape of two rabbit ears, and then compared 12, and then made a chicken pecking at rice with one hand, and immediately compared 23.

Looking at the gesture of the little fat man, Li Qingqing almost couldn't hold back her laughter, held back her laughter, and said in a serious tone, "Teacher, there are 12 rabbits and 23 chickens. ”

"Li Qingqing, your calculations are very fast, it's pretty good, go back to your seat!" Teacher Li's brows furrowed slightly, but he didn't say anything.

"Yo, Lu Li, you're pretty good! Ice cream between classes! Li Qingqing whispered to the boy next to her.

Lu Li glanced at Li Qingqing, and the corners of his mouth rose, "Okay!" ”

"Li Qingqing, come to the office with the teacher." Teacher Li's voice stopped Li Qingqing, who was about to get up and go to the school supermarket store.

Teacher Li looked at Li Qingqing, who was well-behaved in front of him, but couldn't hide the clever and energetic in his eyes, and pondered again and again, "Classmate Li Qingqing, you really wrote the problem of chickens and rabbits in the same cage?" Teachers should listen to the truth. ”

Li Qingqing thought that she wrote it in chalk, and she said it herself, well, that's right, "Teacher, it's me." "It's just that I didn't figure it out.

Teacher Li was about to say something, and Teacher Shen walked into the office, this gentle and generous female teacher was the homeroom teacher of the second class of the fourth grade, and the other identity was Ms. Shen Na, the mother of Li Qingqing's classmate.

"Teacher Li, Li Qingqing is not very good at math, but she is very clever, you can pay more attention to class in normal times." It's okay that Teacher Shen doesn't speak, but when he speaks, he reveals Li Qingqing's words.

Ms. Shen Na also treats Li Qingqing with a pampered heart, but she has always treated Li Qingqing with a businesslike attitude at school.

Li Qingqing squeezed her little fist, took a deep breath, and smiled at Teacher Li's flattery, but she slandered her mother in her heart.

Teacher Li listened to Shen Na's words and glanced at Li Qingqing, so Li Qingqing studied mathematics in the office during the next big recess, and Teacher Li patiently taught Li Qingqing several ways to solve chickens and rabbits in the same cage, of course, these methods have also been talked about in class, but the expression of the little girl in the classroom obviously did not understand. In the end, Li Qingqing's homework tonight added two more chickens and rabbits in the same cage.

Saying that, Li Qingqing took the two questions in her hand and returned to the classroom in a hurry, slapped the paper in her hand on the table, and woke up Lu Li, who was sleeping on the side.

Lu Li opened his eyes in a daze, only to see a fleshy face with some anger, those big eyes looked directly at him, pouting, Lu Li stretched out a little fat hand and gently pushed Li Qingqing's face away.

"Li Qingqing, don't be so angry, it's easy to get old." Then he rubbed his eyes with his two chubby hands into fists, waiting for the little girl who was still looking at him next to him to speak.

Li Qingqing handed the paper on the table to Lu Li, "Lu Li, I still can't, my mother also cheated me, I really doubt that I am her own child." ”

Lu Li looked at the similar eyebrows of Li Qingqing and Teacher Shen Na, and said seriously: "Well, you should be born to Teacher Shen Na." I won't write this question for you. ”

Seeing that Li Qingqing was about to blow up, Lu Li continued, "But in the next physical education class, I can teach you a method that you can understand." ”

Free time for the dissolution of physical education class, "Lu Li, go quickly, teach me to untie chickens and rabbits." ”

Li Qingqing held her small notebook and sat with Lu Li in the shade of the school playground, Lu Li took the pen and notebook, and a little boy playing football in the distance always looked at them during the break.

"Today, I'll teach you a trick of the golden rooster to be independent, you imagine, if the chicken lifts a road, and the rabbit lifts two front legs, then ......"

"Lu Li, why do chickens and rabbits lift their legs?"

"Li Qingqing, don't interrupt me, listen to me."

"Okay, then you go on, I'll listen."

"The chicken and the rabbit raised their legs, and the chicken had only one leg and the rabbit had two legs, so now there are only half the legs...... So, the number of rabbits is equal to the total number of legs divided by two minus the total number of rabbits, and the rest is the number of chickens. ”

"Eh, I can hear this time." Li Qingqing held the notebook and smiled happily.

"But today the teacher also said that in the future, the entrance exam will still pass the equation, and the score will be relatively high, otherwise it is likely that there will only be one answer score. I teach you equations, and you have to get used to using them to solve problems in the future. Lu Li took the notebook back and continued to write and talk.

On the way home from school, Shen Na led Li Qingqing, "Qingqing, why are you so stingy?" Don't talk to your mother yet! ”

"Teacher Shen, it's not a matter of a day or two that I'm stingy, don't you know?" Li Qingqing raised her chin arrogantly.

Shen Na looked down at her little princess, and smiled helplessly, "Li Xiaoxiao, I'm good for you, you have no conscience." "Yes, Xiaoxiao is Li Qingqing's nickname, it is said that this girl was born with a love of laughter, and when other children were just born, they were beaten with a little pp, and they cried, and Li Qingqing was giggled.

"Eh, mother, can you not call me by my nickname on the road, it's very shameless." Li Qingqing has always disliked her nickname and felt that it did not fit her temperament.

However, Li Qingqing, what is your temperament? This will be discussed later.

Shen Na bent down and pinched Li Qingqing's little fleshy face, "Okay, don't lose your temper!" What you want to eat at night, your mother will come home and cook it for you, and then teach you to do your homework at night! ”

Li Qingqing snorted twice and muttered quietly, "I don't need you to teach, you can teach yourself crazy, and Lu Li has already taught me." ”

Shen Na didn't hear clearly, "Well, Qingqing, what did you say?" ”

Li Qingqing took Shen Na's hand and tightened it, "I said I want to eat sweet and sour pork ribs, cold purple cabbage, tomato scrambled eggs, roasted eggplant......"

When I got home, I saw a person in the kitchen wearing an apron with a Teletubbies busy body, and a warm male voice sounded, "Wife, are you and your daughter back?" Take a break and wait a while before you can eat. ”

Li Qingqing took off her shoes with a sigh, ran to the kitchen, and hugged her father's thigh, "Dad, you finally came back from a business trip, Qingqing misses you so much." ”

Shen Na tidied up her daughter's shoes that she had kicked off with her feet, and was about to take her daughter to wash her hands, when she heard the little girl say, "Daddy, in fact, not only do I miss you very much, Teacher Shen Na also misses you, you have to accompany her well, lest Teacher Shen Na spend extra time and energy on torturing me, Dad, don't you know......"

Li Qingqing was about to complain to her father about Ms. Shen Na's "evil deeds", when she heard the sound of gnashing her teeth coming from the kitchen door, "Li, Qing, Qing!" ”

Looking back, Li Qingqing saw her mother's gentle smile, but that smile sent a chill down her spine, let go of her father's thighs, stood up, and laughed doggedly, "Hehe, my dear mother, why haven't you gone to the bedroom to put your bag yet?" You must be tired, right? Qingqing is going to put it on you! Qingqing put her bag and went to count the rabbits and chickens, and remember to call me when you eat. ”

Saying that it was too late, Li Qingqing turned sideways, jumped to the living room in a posture of not touching Ms. Shen Na's body, picked up Ms. Shen Na's bag, ran to the master bedroom, and then ran back to her room with her schoolbag in her arms, and closed the door.

patted his little heart, with an expression of escape. Next time, you must be careful when you sue, otherwise the consequences will be very serious, well, Li Qingqing secretly reminded herself.

However, Li Qingqing, it seems that you have forgotten why your mother is your mother...... My lord!

This classmate Li Qingqing is struggling in the room with chickens and rabbits, but the kitchen here is warm and pink bubbles.

"Husband, why don't you say anything when you come back? It shouldn't be long after you get off the plane, you go to the living room to rest for a while, and I'll cook! Shen Na said and washed her hands and prepared to get the apron.

Mr. Li Yang took Shen Na's hand, "It's okay, I'm not tired, but it's hard for you to take this little devil with you." ”

As he spoke, he took Shen Na's hand, "Come, taste the soup salty or not?" ”

Li Yang blew lightly, and then sent it to Shen Na's lips, Shen Na took a small sip, "Well, it's delicious." ”

"Eh, Li Yang, why do you still smell of perfume?" Shen Na didn't use any strength to pull her husband's ears, the corners of her mouth were slightly hooked, but Ms. Shen Na was still very confident in her charm and ...... Force value.

Yes, charm and force value, Ms. Shen Na has worked as a journalist, travel photographer, taekwondo coach, and can be called a female representative of both civil and military affairs, plus a beautiful face and a good figure, there are still many suitors.

Mr. Li Yang, who was being picked up, smiled softly and took out a bottle of exquisite perfume from his pocket, "Dear wife, this is a gift for you, but I forgot to take it out when I went home." ”

Shen Na took the perfume, stood on tiptoe slightly, and kissed her husband on the face, "Thank you, husband!" ”

Undoubtedly, Shen Na is a happy woman, but this happiness is also hard-won, but fortunately, she and Li Yang both grasp and cherish and maintain this happiness.

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