Teacher Yuan spoke attentively, and Shen Nuofei listened with relish.

After listening to it for a few minutes, Shen Nuofei felt that it was wrong, the knowledge that Teacher Yuan talked about, 12+6 can be converted into 6+6 and then 6...... Mom and Dad have already told me about this kind of addition operation.

The problem of 12+6 can be converted to 6+6 and 6 in the initial stage.

After mastering it, you don't need 666, just get 18 directly.

Looking at the other students, they listened carefully to the lecture one by one, without blinking their eyelids.

Then I have to listen carefully to the class, otherwise I will be criticized by the teacher...... Shen Nuofei cheered up and listened to the math skills that her parents had talked about.

Dangdang dang~

The bell rings for the end of class.

The radio played soothing music, accompanied by a soft female voice: "Eye exercises start now, the first section, rub and press the bamboo acupoints......"

Click.

The students started eye exercises to the rhythm of the music.

"Shen Nuofei, your math is so good. Xu Silin listened to the whole math class, but still didn't understand why 666 is equal to 18? And Shen Nuofei can actually calculate how much 34+28 is equal to.

"Hee-hee-hee~" Shen Nuofei smiled while kneading his upper eye sockets,?? (?? >??

The eye exercises are over, and one (2) class is out of class in the afternoon.

First-year students have just entered the school today, and they are still in the stage of acclimatization, and there are not many classes in the first week.

Although there was no class in the afternoon, and there were still two hours before school ended at half past five, the head teacher Yang Xiuqin appeared again, and she continued to convey the school rules and discipline.

Mathematics Teacher Yuan did not leave immediately after the mathematics class, he waved at the door of the class one (2) classroom.

Teacher Yang came to the door of the classroom and asked, "Teacher Yuan, what's the matter?"

Teacher Yuan said: "According to my preliminary observations, Shen Nuofei's math level exceeds that of children of the same age, and I want to test her further to see how good her math level is."

Teacher Yang crossed her arms and asked, "If Shen Nuofei's mathematics reaches the level of the second grade, will you suggest that the teaching and research team let her skip the second grade?"

Teacher Yuan shook his head and said, "That's not necessary, you can't arrange for a student to skip a grade just because she is outstanding in a subject." Skipping a grade requires a comprehensive examination of the student's comprehensive quality, including psychological maturity. For a 5-year-old, let her go to second grade, I don't recommend that. However, as a (2) class math teacher, it is necessary for me to have an in-depth understanding of the children who are gifted in mathematics in order to teach them according to their aptitude. Teacher Yang, can you give me an hour to talk to Shen Nuofei alone?"

"I can only give you half an hour, and after half an hour, I will take all the students in my class to visit the school history museum. ”

"Okay, half an hour is half an hour, thank you Mr. Yang!"

"Teacher Yuan, wait a minute. ”

Yang Xiuqin returned to the classroom and brought Shen Nuofei out.

"Shen Nuofei, you go to his office with Teacher Yuan, Teacher Yuan will ask you some math questions, are you willing to go?" Yang Xiuqin respects Shen Nuofei's personal subjective will, if Shen Nuofei is unwilling to be taken away by the math teacher, Yang Xiuqin will definitely not let her go.

Teachers who teach science courses such as mathematics, physics and chemistry always look like they are detached from the ordinary.

Teachers who produce Olympiad champions will always have more status in school than teachers who produce champions in essay competitions.

Although she was not convinced, Yang Xiuqin, who was born in liberal arts, had to admit this reality, she didn't want to be too used to those science students who thought they could do whatever they wanted.

"Emmm......" Shen Nuofei looked at Teacher Yang and then at Teacher Yuan, showing some hesitation.

Seeing this, Teacher Yuan immediately said, "Shen Nuofei, I invite you to eat." ”

Shen Nuofei's eyes lit up: "Is there a chicken leg?"

Teacher Yuan said sincerely: "Yes, add a big chicken leg to you!"

"Great!" Shen Nuofei expressed his satisfaction, and was taken away by Teacher Yuan.

Yang Xiuqin looked at Teacher Yuan and Shen Nuofei who were gradually moving away, sneered, and said secretly: Yuan Haibo, you don't want to snatch my Shen Nuofei. The little abacus in your heart, I know it very well!

Office of the Department of Mathematics.

Shen Nuofei got his wish and ate the chicken legs.

"Is it delicious, Shen Nuofei?" asked Teacher Yuan Haibo kindly.

"Smash it, smash it...... It's not as delicious as Xidan's, but it's okay. ”

"Then let's get started, I've got a few math problems, and you can solve them, okay?"

"Uh-huh! I love doing math problems the most!"

"Before I get into the question, let me ask you, what is 5 times 8 plus 11 minus 10? You can make a draft, but you can't use a calculator. ”

Shen Nuofei thought for a while, and then gave the answer: "Forty-one." ”

Yo ho!

Yuan Haibo's body shook, knowing that she was strong, but he didn't expect to be so strong!

I'll go!

There were three other math teachers in the math office who were also amazed.

Mixed arithmetic, this is what was taught in the first semester of Year 4!

In a very short period of time, Shen Nuofei mentally calculated the result of 5 times 8 plus 11 minus 10!

Yuan Haibo himself also has a daughter, and his daughter is in the second grade, and she is currently unable to do fast mental arithmetic four mixed operations.

"Shen Nuofei, you ...... Do you know how to list equations and solve equations?" Yuan Haibo's voice trembled a little.

Shen Nuofei shook his head: "Equation? I won't." My mom and dad didn't teach me, and my dad said, "It's good to let the elementary school teacher teach me such a thing." ”

"Hehehe......" Teacher Yuan and his colleagues let out a strange laugh, yes, there is such a thing as equations, just let the primary school teacher teach it, so as not to waste Academician Shen's precious time.

The knowledge of simple equations is normally taught to students from the first semester of the fifth grade.

After a brief investigation, Yuan Haibo roughly deduced that 5-year-old Shen Nuofei's mathematics level was between the fourth and fifth grades.

Yuan Haibo pulled out an A4 blank piece of paper, and he quickly wrote a few questions on the blank paper.

Question 1, What does 87254013 read?

Question 2, What is 1.35 100 times?

Question 3, 208 cm = () m

Question 4, 642-(36+132)÷4=

In the fifth question, name each of the following figures

……

"Shen Nuofei, can you make these questions? If you can't understand some words, can you ask me?" Yuan Haibo put the white paper on the coffee table, he moved a small stool, let Shen Nuofei sit on the stool, and gave Shen Nuofei a pencil and a piece of scratch paper.

Shen Nuofei took the pen and began to solve the problem.

The rest of the math teachers gathered to watch.

"Eight thousand two hundred seventy five thousand five hundred forty-four thousand and thirteen. Shen Nuofei read out the answer to the first question and immediately wrote on the paper: 135, 2.08 meters, 600 ......

Shen Nuofei is so fierce?

Several math teachers, including Yuan Haibo, were shocked again.

The first three questions are very conventional, and the fourth question is also very conventional.

However, Shen Nuofei did not make a draft when calculating the fourth question 642-(36+132)÷4=?!

She's also mentally arithmetic!

There are not many elementary school students who can mentally calculate mixed operations with three-digit numbers, but almost all of these elementary school students are older students from the third grade onwards.

5-year-old sister Nofi, today is only the first day of elementary school!

Finally, Shen Nuofei encountered a problem that she didn't understand.

The trapezoidal trapezoidal characters, the equilateral triangle and other words, Shen Nuofei can't write.

So Shen Nuofei pointed to the various figures on the test paper, and she replied verbally: "This is a trapezoid, this is an equilateral triangle, this is a parallelogram, and this is a right triangle......"