The last session of the afternoon was a math class.

The math teacher's name is Yu Wei, and the students call him "Lao Yu", he is a graduate student assigned after graduating from a prestigious university, he is very homely, with a white coat and black-rimmed glasses, and he is more like a dangerous person who conducts experiments than the teacher, as can be seen from his exaggerated chalk writing a string of formulas on the blackboard, and indiscriminately interspersing physics and chemistry equations.

He didn't care whether the students below could understand it or not, and after talking about the knowledge beyond the scope of the textbook with a conceited face, he pretended to hold on to the frame of the glasses, and said in a mysterious tone: "The above knowledge I talked about is not within the scope of this exam, but in order to let you have a deeper understanding of the beauty of mathematics, I will take five minutes to explain to you these classic examples that have been thought about and solved by mathematicians at home and abroad for thousands of years, please wait and see!" ”

At this time, everyone basically collapsed, and they didn't know whether it was a blessing or a curse for them to have such a teacher?

There was a wail under the podium, many people were lying on the table, and the impassioned Lao Yu on the stage chose a shielded self-release, some people closed their eyes in a daze, and some scholars took out the new version of "Three Years of High School Entrance Examination, Two Years of Simulation" and began to do questions.

Xia Yu looked at the dazzling question types on the blackboard and felt a little interesting.

She copied the questions in her notebook and started to run her brain.

Ji Yuan turned around and shook the screen of his mobile phone, "Brother Xu, if you want to drive it now, I will choose a tank, this time I must kill the other party!" ”

"Bet for a few minutes?" An Lixu didn't sleep this time, but he didn't want to waste his energy on the ethereal "beauty of mathematics".

"Nine minutes!" Ji Yuan affirmed.

"Lost the treat."

"No problem!"

The two were preparing to go to war, but Xia Yu was still immersed in the idea of solving the problem with her head down.

Lu Fengyang also wanted to cooperate with them, and inadvertently swept the notebook that Xia Yu was spreading on the table, and his eyes froze: "Xia Yu, are you doing the question on the blackboard?" ”

"Hmm." Xia Yu nodded reflexively, and when she wrote out the answer, she realized what the other party had asked, looked up and shook her head again.

An Lixu was a little surprised when she heard Xia Yu doing the questions on the blackboard, but she only stayed in her eyes, and Ji Yuan broke out directly.

"You made it? Scholar! ”

"I ......" Xia Yu just wanted to deny it, but saw that Lao Yu on the stage had already rushed over, and the chalk head pointed at Ji Yuan first, "I've put up with you for a long time, and if you want to disturb discipline, you have to see whose class it is, Ji Yuan, An Lixu, Lu Fengyang...... And you, come up for me! ”

Lao Yu clicked in turn, and when he pointed to Xia Yu, he obviously hesitated, he didn't know Xia Yu's name yet.

As soon as the four of them came on stage, the students who were drowsy or still doing questions immediately woke up.

There's a good show to watch!

The four questions Lao Yu wrote on the blackboard obviously exceeded the current level.

Lao Yu, who likes to use advanced mathematics to embarrass students, grinned: "Aren't you quite capable?" Come on, let me see how much the students in the key class have learned. ”

Ji Yuan and Lu Fengyang looked at each other, looking confused.

An Lixu glanced at his title, picked up the chalk, and drew a big zero under the title.

The math teacher glanced at the answer, his brow furrowed enough to kill a fly: "Guess? ”

"Mental arithmetic."

An Lixu said calmly, he wouldn't say that he had just seen the answer.

The girls at the bottom looked "Brother Xu is awesome!" "Brother Xu is super handsome!" The emoji.

Last it was Natsuyu's turn, she picked up a piece of chalk and began to write on the blackboard.

Just when Lao Yu thought that she was going to be as close to Meng as An Lixu, but the next scene stunned everyone.

Xia Yu's clear and powerful font is written below the title one after another.

Damn, she's writing the problem-solving process!