"Wang Li." Li Chen shouted through gritted teeth.

Wang Li, this bastard, is simply a rat shit in a pot of white rice, which is so conspicuous.

"Wang Li, the teacher called you." Meng Fei sat next to Wang Li, poked Wang Li with his finger, and said.

"Who am I?"

"Where am I?"

"What am I doing?" Wang Li was woken up from a sweet dream, and his mind was a little confused for a while.

"Wang Li, repeat the question I just asked." Li Chen glared at Wang Li and said.

In Li Chen's opinion, it is definitely impossible to let this kid write a question. Let him repeat the question and find a step to get down.

"I won't, I was just sleeping, I didn't hear it." Wang Li said confidently.

"What?"

"Is it so rigid?"

"Cattle Pie." Everyone's eyes looked at Wang Li, a classmate who was coaxing and coaxing.

"Sleep?"

"Is it so reasonable to sleep?"

"Who told you to sleep, did I let you?"

"You think the school is your home, and you can sleep when you want?" Li Chen looked at this muddy man and roared angrily.

"That's not what you said when you asked me to hang the blackboard just now."

"Let me ask you, why do I do this kind of work as a student."

"You said you wanted to treat the school as if it were your home."

"I'll ask you again, what you're going to do next after hanging up the blackboard."

"You say, what you do at home, do it now."

"I'm just sleeping at home."

"That's exactly what you put me to sleep." Wang Li said with an aggrieved face, and he wondered why this man, a man, was still a marquis, so why didn't he talk about it.

"Ha, ha, ha." The students couldn't help it and laughed.

"Meng Fei, your friend is really ......," Ying Yue said as she pointed at Wang Li.

"Sister Yue, you talk to talk, don't scold." Meng Fei looked at Wang Li with a disgusted expression.

"Whew, whew, whew."

"Wang Li, you go out." Li Chen said angrily.

"Go out, go out, what's the big deal." Wang Li muttered and walked out the door.

"Alas, I said Lao Wang, look outside the door is your little Wang, right?" In the office opposite the classroom, Wei Luzi asked Wang Qian.

"Say that the king doesn't say it, civilized you, me and him." Wang Jian said angrily.

"What's wrong with your grandson?" Wei Puzi is which pot is not opened and which pot is not opened, quipped.

"It's cool outside." Wang Jian said depressedly, his grandson is really a grandson, and he is ashamed.

"Alas, what are you doing out, Lao Wang." The two were chatting hotly, and Wang Jian suddenly walked out the door.

Of course, the conversation is so hot, and Wei Yanzi himself thinks so, Wang Jian actually doesn't want to deal with him. This guy's kung fu is not inferior to the art of war.

"Untie your hands." Wang Jian replied angrily.

"You kid, next time you're standing outside and listening, I'll break your legs when you get home." Wang Jian pretended to go to the thatched house, and whispered when he passed by Wang Li's side.

"You break my leg, then they push me out, and I'll sit outside and listen." Wang Li said clearly.

"Let's move on." Li Chen said that after driving Wang Li out, the atmosphere in this classroom instantly became much fresher.

"Only three people have made this question, Li Qing, Ying Yue, and Meng Song." Li Chen praised.

It is not surprising that Li Qing and Ying Yue can make Li Chen, after all, these two people are very knowledgeable and have been exposed to arithmetic. Meng Song is just a businessman's son, and he can quickly calculate that it is indeed unexpected.

"Although the three of you have figured it out, it will be available for too long." Li Chen said.

"Teacher, this is not slow, and my bookkeeper is only at this speed." Meng Song said.

"yes, the teacher is really not slow." Li Qing also echoed.

"I'm not saying you're slow, I'm saying you're too slow. You might be the fastest with the existing algorithm, but what if you do it another way. Li Chen continued.

The crowd fell silent, apparently they wouldn't have done it any other way.

"Well, I'll do it again, and you'll see." Li Chen pondered for a few seconds and said. After all, does it hurt to have contrasts.

"Somebody's going to change those numbers?" Li Chen said to the students.

"Teacher, I'll come." Ying Yue said suddenly.

"You can't." Li Chen refused.

"Teacher......" Yingyue is puzzled.

"I'm afraid that others will say that you are a trust." Li Chen said.

"In addition, can you not call the teacher, the people who shouted are scratching the cat in their hearts." That's what a slut thought to himself.

"Teacher, I'll do it." Li Qing said.

Assuming that each wealthy merchant in Daqin needs to pay a tax of 869 taels of silver, then how many taels of silver do the 487 merchants in Daqin need to pay. After being changed by Li Qing, the title became like this.

"How much time do you think the teacher will need to figure out the answer?" Li Chen asked.

"Half a pillar of incense, right? I think. Li Qing said.

"A cup of tea is the fastest." Someone speculated.

"Forty two hundred and twenty-three thousand two hundred and three." Just as everyone was speculating, Li Chen reached out and wrote the answer on the blackboard.

"This can't be?"

"Too fast?"

"The answer is not right, right?" The students wondered how it was unbelievable that someone could do such a complex number so quickly.

But after some calculations, everyone soon found that this number was exactly the same.

"Teacher, you're a genius." One student asked, and the others immediately agreed.

"I'm not a genius, just an ordinary person."

"Mathematics is different from other disciplines in that the answer to mathematics is unique and fixed."

"One plus one can only always equal two, and there can be no other answer."

"So, math has traces, as long as everyone masters the skills, everyone can quickly calculate the answer."

"Remember, a brother may betray you, a mother-in-law may cheat on you, but math won't, won't just won't." Li Chen looked at the students and said seriously.

"Teacher, can each of us figure out the answer as quickly as you do?" A student asked.

"Naturally, maybe faster than the teacher." Li Chen said.

Arithmetic is only the most basic thing in mathematics, whether it is life, business, science, chemistry, all need mathematics.

Business activities need to be accounted for, scientific research needs parameters, and maps need data.

Mathematics will be the chariot and horse of Daqin's rapid progress, and only this chariot and horse can take Daqin out of the agricultural era and into the industrial age.

Only by popularizing mathematics can more people come into contact with the subject of mathematics. Only in this way can Daqin's science develop extremely quickly. Mathematics is undoubtedly the key to open the door of science, and without this key, it can only be won without the treasure mountain.