How can I bow my head and serve the powerful officials?

Su Qinghe looked at this scene and felt a little restless. He thought to himself that if he had known this would happen, he should have gotten up earlier and done more to avoid any rift between the Second Prince and the Princess.

Zhu Xiaobiao leaned over and whispered in his ear, "Mr. Su, can you make more next time? I want my friend to try it too. I can pay for it!"

Su Qinghe was stunned and blinked in confusion.

This was the first time he met someone who wanted to pay money.

In the past, those people had been greedy for food and pretended to be friendly with him. Some even used the cakes he made to please others, but secretly criticized him.

No one ever paid money.

Su Qinghe shook his head, "No need for silver."

"How can that be? According to what our Highness said, those who have worked hard should be rewarded accordingly. Common people must be paid for their work, and friends who work hard to buy things for them should also be rewarded." Zhu Xiaobiao learned a lot of new words from Xie Chengze, and they spoke them very smoothly. He took out a small golden melon seed from his belt and secretly put it into Su Qinghe's hand.

He had lived a life of luxury before, and knew that the ingredients for these pastries must be expensive, so he did not hesitate to offer the price, "Master Su, every time you go to the palace to see His Highness, just bring me one portion~"

Su Qinghe stared at the golden melon seeds in his palm in a daze.

The golden melon seeds were like pieces of hot charcoal, burning Su Qinghe's palms painfully and hotly. He was not short of money, and did not want to accept any money, but he held the golden melon seeds tightly in his palms. Even though his palms and five fingers were in pain almost to his heart, he was unwilling to let go.

He coveted this burning sincerity.

He also wanted to use this golden melon seed to closely connect several people together.

"Okay." He said softly, a rare sincere smile appearing on the corners of his lips.

Another side of the high wall collapsed.

In the end, Xie Chengze left some cakes for the two little girls and asked Zhu Xiaobiao to go to the kitchen to get two food boxes so that they could take them back to honor their mother.

Then he asked the two of them to be quiet and pretended to flip through the arithmetic book while continuing to write his own textbook.

He wanted Su Qinghe to notice that he was doing arithmetic, first to deepen his impression and then gradually lead him, so that Su Qinghe could persuade the head of the Su family.

The two little girls had long been curious about what their second brother was writing. They leaned over and asked in surprise, "Second brother, when did you start studying arithmetic?"

"Oh?" Xie Chengze looked up, a little surprised, "You know arithmetic?"

"Forehead……"

Xie Shu and Xie Ping'an immediately lowered their heads.

Xie Chengze: ...

Xie Chengze understood. The two of them even dared to climb over the wall of Chenghuan Palace and sneak out of the imperial palace. The mere Jiantiansi must have also visited it from beginning to end.

"Can you do arithmetic?" He looked at the two of them with a smile.

The two little girls shook their heads.

Xie Chengze couldn't help but raise the corner of his mouth into a nasty and playful arc.

Now that you’ve traveled through time, how can you not check out a plot like “using classic arithmetic problems to embarrass the ancients”!

"Then I'll give you a problem~" Xie Chengze showed his white teeth and wrote down an arithmetic problem about chickens and rabbits in the same cage on a piece of paper, "Now there are pheasants and rabbits in the same cage. There are thirty-five heads on top and ninety-four legs on the bottom. How many pheasants and rabbits are there?"

The two little girls started to move their fingers with great interest. When they found that moving their fingers didn't work, they started to squat on the ground and draw chicks and rabbits.

This amount of questions would probably take the two of them a whole day to finish, so Xie Chengze lowered his head and started writing the textbook.

Zhu Xiaobiao watched for a while and couldn't sit still, so he started to draw rabbits and chickens with the two princesses.

Su Qinghe was left alone, not knowing what to do. He was thinking about whether to help the princess like Zhu Xiaobiao. Xie Chengze seemed to realize that he had nothing to do, so he handed the written part to Su Qinghe, "Qinghe, can you help me take a look at what I wrote? Is it difficult to understand?"

Su Qinghe felt like he had picked up a hot taro.

How could he understand this when he had never encountered arithmetic problems?

However, he was used to being submissive, so he still gritted his teeth and lowered his head to look.

On the first piece of paper, there is a math formula written on it. It is easy to read and explains what multiplication and division are, using examples of selling goods in a shop, which is vivid and easy to understand. At the end, the multiplication and division solutions of two-digit and three-digit numbers are also written. The methods are clear at a glance and very simple and interesting.

On the second piece of paper, there were some large patterns and strange small symbols that Su Qinghe had never seen before. Fortunately, there were labels next to those strange small symbols, so it was not difficult to understand that they were aliases.

This symbol represents an angle. This symbol is an auxiliary synonym. When combined, it means...

Su Qinghe became more and more immersed in it the more he read. The content on the paper was easy to understand. When he figured out what these things meant, the patterns and numbers gradually took shape in his mind. He gently moved one of the lines, only to feel something suddenly explode. Countless new questions flooded into his head, making him itchy and wanting to get a definite answer immediately.

Just like staring at the remaining cake crumbs on the tea table, if he doesn't get an answer, he won't be able to sleep tonight.

He secretly glanced at Xie Chengze, who was drawing seriously with a paperweight, opened his mouth but swallowed what he wanted to say, wondering when Xie Chengze would look up so he could ask again.

Noticing that the person next to him seemed a little restless, Xie Chengze couldn't help but look up and asked, "Are you in a hurry to pee?"

Su Qinghe:?

Su Qinghe's face suddenly turned red.

Your Highness, how can you speak so rudely?

He shook his head vigorously and said, "No, no, I'm just a little confused about the contents of the paper."

"Oh?" Xie Chengze subconsciously wanted to move the chair next to him, but he forgot that there was a stone bench under his butt. He grabbed it with both hands before realizing that he couldn't move it.

So he stood up and walked to Su Qinghe's side. He put one hand on the edge of the stone table and the other on Su Qinghe's left shoulder. He lowered his waist and raised his buttocks. He adjusted the non-existent glasses frame in front of him, with the demeanor of an old teacher. "What's the problem? Go ahead!"

The young man's shadow fell on the stone table, leaving a half mark on the paper. The touch on his shoulder was neither light nor heavy, just enough to make people concerned.

Su Qinghe stiffened his body slightly, ignoring the shyness of never being so close to someone, and stretched out his finger to slide lightly on the pattern three times, "If we move this line here, and add another line here, so that it becomes... um, stands up? Then is this theorem still correct?"

Xie Chengze was strangely silent for a moment.

Why was there a strange silence? Because this was a plane geometry problem, and Su Qinghe's movement and addition, plus his statement when he stood up, directly turned this plane geometry problem into a solid geometry problem.

Could this gentleman be the legendary holy body of innate space geometry?

"That's another arithmetic problem." Xie Chengze patted his shoulder in a heavy tone, "Don't look at it yet, let's solve the problem of pheasants and rabbits in the same cage."

Su Qinghe tilted his head slightly, his eyes showing a rare seriousness, "Can I know the answer after the calculation?"

"Yeah, yeah." Xie Chengze nodded perfunctorily. It was not that he did not want to explain, but the content of solid geometry was much more difficult to get started. Even if he explained it, Su Qinghe, who did not have the basic knowledge, would find it difficult to understand.

Let's wait until he writes a separate lesson plan. I guess the problem of pheasants and rabbits in the same cage will take them several days to study.

Unexpectedly, Su Qinghe's gentle voice suddenly rang in my ears, "Your Highness, there are 23 pheasants and 12 rabbits."

Xie Chengze:?

Xie Chengze: ???

Xie Chengze turned his head suddenly, "What did you say?"

Seeing Xie Chengze's intense reaction, Su Qinghe couldn't help but feel a little helpless, "No, isn't that right?"

"Fuck! Brother!" Xie Chengze suddenly put his hands on his shoulders and said excitedly, "Are you a math genius?!"

Su Qinghe didn't understand, but he subconsciously shook his head and denied it, because the word "genius" never related to him.

Xie Chengze didn't believe it. Two numbers quickly popped up in his mind. After calculating the answer, he asked, "Let me ask you, there are pheasants and rabbits in the same cage. There are 218 heads on the top and 676 legs on the bottom. How many pheasants and rabbits are there?"

Su Qinghe pondered for a moment, looking at the arithmetic formula, and wrote something on the stone table with his slender index finger. After a while, he said softly, "It should be one hundred and twenty rabbits and ninety-eight pheasants."

Xie Chengze:!!!

No? You can calculate this?

"How did you calculate it?" Xie Chengze was very puzzled. Didn't Su Qinghe say that he had never encountered arithmetic problems?

"Well, I don't know if I'm right." Seeing Xie Chengze's expression, it seemed that he had calculated correctly, so he had the courage to speak, "Your Highness, you used this pattern to represent this corner, so I thought that perhaps the number of rabbits and chickens could also be expressed by a pattern respectively. And the multiplication you wrote on the paper said that there were four cakes in a food box in the shop. If you use the multiplication formula for six food boxes, it is four times six times twenty-four, which corresponds exactly to the four legs of a rabbit, so six rabbits have twenty-four legs."

"The sum of the rabbit and the chicken equals the number of heads, and four times the rabbit plus two times the chicken equals the number of feet."

"Chickens have two legs, rabbits have four legs, and rabbits are twice as many as chickens. So if chickens have one leg, rabbits are equivalent to having only two legs, and the final number added up will be half less. In this case, one rabbit pattern plus one chicken pattern is 218, and two rabbit patterns plus one chicken pattern is 338. The latter has one more rabbit, so the rabbit pattern is 120, which means the number of rabbits is 120, and naturally the number of chickens is 98."

After saying that, he looked at Xie Chengze cautiously, "Second Prince, am I right?"

Xie Chengze: ...

It’s more than right, brother!

I just wrote some addition, subtraction, multiplication and division, and marked some ∠ABCD on the geometric patterns, but you learned to use ABCD to represent X and Y, and solve the problem with a method close to a linear equation?!

This ability to integrate and comprehend is so fucking powerful, isn't it?