The high math competition questions are not ordinary competition questions, sometimes the 120-minute competition time only needs to be difficult for three to five big questions, and sometimes there are 120 minutes of competition time for a big question, which shows how difficult it is.

Lu Zhi'an was not very satisfied with himself, and sighed with a smile, "I just heard you say that Shi Ning only took eight minutes, and in a few minutes, I will use half of her time." ”

"Shi Ning......" Teacher Liu's eyes smiled very deeply, glanced at Shi Ning, who was talking to the girl in the second class, and praised: "She is not ordinary, as far as the current point of view, her level is far beyond you and Xi Qinghuan." ”

Just now, Xi Qinghuan put down the pen, and when he heard the words, he said lightly while putting the pen cap on: "Normal, the two of us have learned her strength." ”

"The high math puzzle book you gave us last time, there are three major problems that Lu Zhi'an and I have been thinking about for a week without any progress, and she has solved them all in one morning."

Teacher Liu: "!!!! ”

After a long while, Teacher Liu said, "Why didn't you tell me?" ”

"You didn't ask." A faint smile flashed in Xi Qinghuan's eyes, and he turned cold as usual, "Look at my answer." ”

Xi Qinghuan took fifteen minutes, one minute later than Lu Shi'an, and seven minutes later than Shi Ning.

When the draft book was handed over, his gaze swept to Yu Su, cold and prickly, like a thin blade rubbing against Yu Su's face, his thin lips pursed slightly, and he said coldly, "Villains do a lot of weirdness." ”

Lu Zhi'an glanced at Yu Su, then retracted his gaze lightly, he didn't even feel troubled to look at Yu Su more.

Yu Su was so angry that her eyes were red, this was the first time she had lost one after another, and she had always been the only one who quietly suppressed others, and today ...... It was she who underestimated Shi Ning, and in turn was given an army by Shi Ning!

This breath must be endured for a while.

Taking a deep breath, Yu Su pretended not to hear what Xi Qinghuan said, and sighed bitterly to Teacher Liu: "Teacher, in the future, you will also teach us high mathematics if you have time, alas, being compared to the senior sister, your face is gloomy." ”

Able to bend and stretch, there is no abnormality on his face, Lu Zhi'an's slender fingers are rubbing lightly, and there is a dull color in his dark jade-like black eyes.

In the future, we have to pay more attention to Yu Su's movements.

Teacher Liu didn't care about anything with the students, and said that Yu Su said a few words to give the students a step down, and then carefully checked the analysis of Lu Zhi'an and Xi Qinghuan.

Shi Ning, who had already gotten up, was interpreting the formula to the students, very seriously, answering whatever he asked, Le Lao, who had never left, finally knew Shi Ning's appearance at this time, and every word that Shi Ning said just now had to be heard clearly in his ears.

The little girl is still a thorny, but she is not aggressive, she talks about things and says that the other party is dumbfounded, and she is no longer embarrassed.

"Little girl, can you show grandpa the problem you just solved?" The group of students was not as dense as just now, Le Lao stood beside a student and said with a kind smile: "Grandpa is also very interested in high mathematics and wants to discuss it with you." ”

The teacher who led the team had already had some communication with Le Lao just now, and from the conversation, he knew that this was a knowledgeable old man, worried that Shi Ning was young and looked down on people, and said with a smile: "Shi Ning, the old man has been standing by and waiting in order to communicate with you." ”