After reading the answer, Renault didn't praise it, so he started to have a meal first.

In fact, when he was setting the question, he thought that these students could be considered adults in Dachu. Although they were under twenty years old, they could get married and have children. In addition to Huya, Mozi and a few younger people, even Mo Xiang could get married and become mothers.

Adding one to one hundred sounds a bit difficult. After learning four operations and understanding the rules of addition and subtraction, as long as you are careful, it is impossible to calculate it, and even the chance of making mistakes is not high.

It took these people a half day to finish it, and they were obviously not skilled. This is normal. When they were learning addition, they were only three years old, and it took several months to half a year to learn addition within ten. It is not surprising that children who were studying late would be able to add simple only at the age of four or five.

"Continue in the afternoon, and continue to add from the answers you got in the morning, and add to two hundred." Renault shook his hand and left.

This is the tactic of the sea of ​​questions that Renault has come up with. Using this method of the four arithmetics, there will be endless questions, which is so worry-free. What he is worried about is what to do in the future. If you learn too much, the questions will not be easy to come up with.

Forget it, let's talk about it at that time. Renault is still thinking about playing with the phone now. Naturally, he can't come up with something as high-end as global calls, and it's impossible to even talk to the whole city. To put it bluntly, the hand-cranked phone he's making now is just a big toy.

There are all black, resin and clay, Renault is the one who works as a craftsman. After a while, he uses the mold to make a bunch of resistors, and then it is firing. This is even simpler and you don’t have to leave the house. There is a small furnace in Zhangtan. You can burn it out by controlling the temperature. Anyway, there are not many.

Renault can't do anything else, and temperature control is the best. Just give instructions to the God of Wealth and stare at the data on the screen. Although it is not much different from the fixed-temperature sintering furnace.

"Zhangtan, have you prepared everything you have prepared?" Renault asked.

"Everything is ready." Zhang Tan replied, simple parts, he didn't need to take action. His son and apprentice's skills were good. They were all the best in the craftsman's camp. They were all the best at craftsmen. Around Renault, they could only do small workers' work, and they could only bear the grievances. I didn't see that Zhang Tan was often used as a coolie.

"I've created so many things, please send them here first." Renault rubbed his hands, a little excited, but he knew that he would definitely not finish it today, so he could only try it.

Renault took two people to assemble the phone. In the study there, everyone was calculating the problem. From one hundred to two hundred, it was much more difficult, after all, it was a three-digit addition.

The Ninth Princess has already calculated that it is over 130 years old, and her wrists are sore and soft. She rubbed her wrists and stood up, moving her limbs. Seeing that everyone was burying their heads and thinking, she nodded secretly. Such an opportunity is rare. Only by seizing the opportunity can we find a future.

I'm suspicious, no, not everyone is counting, is that little guy sleeping?

The little bit in the ninth princess's eyes was naturally Mo Zi. This kid suffered a lot, was malnourished, thin and small, and looked much smaller than a tiger's teeth.

Looking at his sister Murphy, he was gritting his teeth and trying hard to calculate. The Ninth Princess's eyes were slightly angry. Her sister was not bad, but this younger brother was an incompetent person.

He walked over, stretched out his jade fingers, and tapped the table twice. The sound was not loud, but the room was already quiet, and everyone's eyes came.

"Wake up, go back to sleep." The Ninth Princess's voice was still very soft, but everyone could hear a hint of coldness.

"Princess, I..." Murphy quickly got up and saluted. On the surface, everyone was learning from his husband, but the gap was actually big.

Among these people, Huya is the one who wants to learn, and they are the eldest followers of the teacher, and even the Ninth Princess will respect him a little. Cui Qing is an apprentice and the Ninth Princess is a maid. Strictly speaking, only the two of them are qualified to follow the teacher.

Cui Qing was driven to the fire kiln by his husband. The people present, whether in terms of their identity or status around him, were respected by the Ninth Princess.

Seeing Mo Zi's appearance, Huya was so angry. Didn't he just offer this secret book? He just gave you food and let you learn something and dare to sleep?

He stood up and reached out and wanted to take Mo Zi out. Before he could reach his hand, Mo Zi still closed his eyes and said, "I think it's wrong. Don't you feel it?"

Huya's hand stopped for a moment: "What's wrong?"

"In the morning, the teacher gave one plus one to one hundred, and the afternoon questions were given, and the morning score was added to two hundred, which means that the whole day was done from one plus two taels, which was wrong." Mo Zi said with his eyes closed and affirmatively.

"You're talking nonsense, sir, can't be wrong." Huya was angry, picked up Mozi and threw it out the door. At this time, Mozi, the boy, had not opened his eyes yet.

Mo Zi was carried by Huya, but his face did not change. He nodded and said, "Yes, sir, naturally, it's our fault. But where was the fault?"

Huya was confused. He didn't like studying. His husband's knowledge was a big knowledge and a secret technique, so he followed him. In the morning, he was already confused and had nowhere to vent his anger. He wanted to deal with Mo Zi.

If it were normal, Huya would not care about Xiao Dingdou at all. He looked down on the Mo siblings from the bottom of his heart. When the Hu family was in trouble, he and Uncle Wang and Hu Meier insisted on it.

"Tiger teeth, put him down first." The Ninth Princess said.

Huya was still in awe of this princess. After hearing this, she let go and threw Mozi on the ground. Mozi didn't get up and sat cross-legged on the ground, as if she was still thinking about something.

"Tell me, where are we wrong?" The Ninth Princess's curiosity was aroused.

"What's the use of mathematics? I remember that when you taught us how to understand numbers, the first thing you talked about was that mathematics is the foundation of all craftsmanship."

The Ninth Princess nodded. This is right. It is impossible to forget what I taught yesterday, but what does this have to do with today's studies? What's wrong with it?

Mo Zi said softly, more like talking to himself: "Since math is laying the foundation for all kinds of labor, then solving is more important than the process, one to one hundred, one to two hundred, and it repeats itself over and over again, and it makes no sense."

"Why is it unreasonable? Mr. must have reason!" The person who spoke was naturally Huya. In his heart, Mr. is the most powerful. You little Dingdou, dare you say that Mr. is unreasonable?

If it weren't for the Ninth Princess, he would have taught Mo Zi the truth about being a human being with his fists.

The Ninth Princess naturally wouldn't be so violent. She frowned slightly, and felt that she didn't understand what Mo Zi said. It seemed to make some sense in a vague way...

"Your Excellency first talks about the purpose of calculation, then teaches addition, then subtraction, multiplication, division, and four operations, and finally one addition to one hundred, to two hundred." Mozi was already deeply trapped in his own world and ignored external objects.

From the time he added to fifty, he felt that adding this way should not be your original intention. Since he learned the four operations, why just use one addition?

If Reno were here at this time, he would definitely be shocked. Children on Earth knew the Gaussian theorem and did not think it was amazing. Only when they were old would they understand that the significance of the Gaussian theorem was really not something that ordinary people could think of.

Mozi was pondering, and the Ninth Princess was listening.

Renault has installed several phones now, and has made many parts. There are fine iron rulers I created before, and the workmanship is poor, so the yield rate is significantly higher.

If you have a phone, what you lack is copper wire. It is difficult to make a thin copper wire in Dachu. In order to get this thing, Renault asked Zhangtan to create a thread squeezer, which is a relatively ancient device.

The thread squeezer is a pentahedral fine iron box, very thick, the sixth side is empty, and three small holes are drilled opposite the empty surface. It took Zhangtan half a day to make these three small holes.

Such a simple thing is the main body of the wire squeezer, and the other half is the pressure device, the same size as the box, and a long fine iron column is connected to the back.

When using it, first heat the copper block and divide it into a suitable size. When the copper block is in a red hot state, use iron clamps to put it into the main body of the wire squeezer. Then aim the pressure device at the empty side, so that the box is fully enclosed. A few strong men push the fine iron column with all their strength to give the copper block inside a large enough pressure.

When the pressure is high, the copper block will be squeezed out of the small holes. If the squeezing line is stopped, the copper wire will be squeezed out bit by bit. The reason is similar to cold-pressed cooking oil.

This method is naturally very backward and slow. It is almost impossible to produce copper wire in batches. Fortunately, Renault never thought of popularizing telephones in Dachu.

Until the evening, the copper wire squeezed out more than 300 meters, which was enough. Li Si, the great master, was the main line of squeezing the line. If he had not put in a lot of effort, let alone 30 meters, 30 meters would have become a problem.

After working hard for the afternoon, Renault took a shower first and was not in a hurry to answer the phone. Anyway, he was just a toy to pass the time, so he just played with it slowly. After taking the first step, Renault's mind began to diverge, and he felt that this thing could be played for a while.

"What's wrong with you? Haven't finished it in the afternoon?" Renault asked as he looked at the expressions of the Ninth Princess and everyone was a little strange.

"It's Mo Zi, he said we were wrong." Hu Ya said dissatisfiedly, and calculated the problem carefully, but after Mo Zi said that, no one was left unconscious to make up. He did nothing in half an afternoon.

"Oh? Just make a mistake and make a mistake." Renault said indifferently, cheering for himself in his heart. Those who have been to college are smart and make you proud. Only then will you add up to 200. When you finish doing it, continue to add up.

Haha, I have countless questions, so you want to vomit, after calculating addition, subtraction, multiplication and division, and geometric algebra.

"Sir, Mo Zi said, it's not that he calculated the wrong idea, it's that he was wrong. He said, "Sir, you didn't ask us to calculate the addition." Huya was obviously complaining.

"Oh? It's not about addition, what's that?" Renault was shocked. Is this a genius rhythm?

"He said, maybe all four calculations must be used." Huya continued, Xiao Dingdou was annoying. The gentleman would better drive him away. He didn't even recognize the words, so he wanted to learn calculations?

"It's calculated? What method is used?" Renault asked hurriedly.
Chapter completed!