"Ahh Then I've already started eating. ”

"Who is so enthusiastic to give you so many meal coupons." Suddenly, his voice paused, "(*Jinling Yayan*) You slept at my house last night, who unknowingly put the meal coupon in your bag. Anyway, you eat first, if we have any problems here, Dao Ancestor will tell us in advance. Daozu didn't say that it was okay, anyway, if you don't eat for nothing, you won't eat it. You eat yours, I'll check slowly. See you later. ”

Zhu Xianene hung up the phone.

【Tsk】

"Do you feel anything?"

"No, I don't. Big brother, I want to sleep, I'm not Qin Qiong and Wei Chigong and I will give you a guard like a door god. 】

"Oh~~ What do you want you to do?"

[I'm already useful when I'm awake, can't you let me sleep a little longer?] I'm still growing up. 】

"Tsk, forget it. Anyway, Daozu didn't say anything, it's okay, eat and eat. ”

He put the jade plaque down.

"Are you alright?" Wen Yuan next to him asked him. Although he could see from his expression that there was no problem, he still asked.

"No problem, everyone keep eating. Well, someone has a treat today. ”

Lu Liang on the opposite side glanced out the window - the scenery here is also very good, not only can you see Wutai Mountain, but also you can see Yuejiang Tower, see the anchorage of Longjiang Sailor in Xiaguan, and you can also see the container ships coming in and out of Pukou Port on the other side of the river.

"Oh~~ I'm a little embarrassed that you suddenly invited me to eat so well." Qi Yuan is a little difficult to do. She originally thought that it would just be a dinner party among her classmates, and even if she went to Lanfang Pavilion to eat, it wouldn't cost a few dollars. I didn't expect to directly pull to the top in the rank of public food - although it is far from the top compared with business reception and government cuisine, this is quite exaggerated. It was so exaggerated that she didn't even know how to return the salute.

"Eh, just eat it, don't worry about it." Shang Luo didn't know who invited him. Whatever, it's always good to eat anyway.

"Okay." Qi Yuan could only nod. Anyway, I'll come and eat, eat first.

Before the food came up, Shang Luo was drinking tea when he suddenly remembered something.

"By the way, what's our schedule after the game?"

"After the game? Of course, I went back to class until the end of the year. ”

"So the semester hasn't ended yet?"

"Of course. The new semester is the beginning of spring, not autumn. We still have to be classmates for half a year, and the results of the imperial examination will not come out until the winter solstice. ”

"Why the winter solstice?"

"Because the winter solstice is a year of the solar calendar, not a year of the imperial calendar. Like the imperial court, and many enterprises now, they calculate the fiscal year according to the winter solstice. Therefore, in ancient times, the winter solstice was called the first of the year, which is an old rule. Because the solar terms are calculated according to the solar year, there must be 365 days between the two winter solstices. The imperial calendar is a lunisolar calendar, and there may not be 365 days in a year. Well, considering that you've been in the place where the big baboon bared its teeth for too long, I'll help you add common sense. ”

"It's all said that the orangutans in Yangzhou are also there. How did you become a baboon again? I said there wasn't any wildlife over there. But I really don't know. ”

“.” Hearing this, Qi Yuan was stunned for a moment, "I've actually been worried about a question: Can you pass the Xiucai exam?" ”

"Yes, it should be."

"You wait." Qi Yuan opened the crossbody bag he was carrying and took out a booklet from it:

The dark blue cover of "Three Years of Xiucai and Five Years of Lifting" is a math fascicle.

Qi Yuan flipped through the booklet, only turned to the first few pages, and handed it over to Shang Luo to read the example questions.

"You, look. The Xiucai test is the "National Benchmark Academic Proficiency Test", which is quite simple, and there is not much change in the question type, just the junior high school level. This high school booklet is only slightly mentioned, and the main part is the five-year middle school. Still, you should take a look. Do you know how to solve this math problem? ”

Shang Luo glanced at it:

There are 49 chickens and rabbits, with a total of 100 legs.

[There are 48 chickens and 1 rabbit. Apollonia gave the answer.

"I don't want you to remind me! Are you despising me? This is what you will do in elementary school! ”

[Huh? So you would, I thought you would. Tut-tut, that's amazing. 】

"Why are you so weird." He put the booklet down on the table: "Don't worry, squad leader. That's the answer at a glance. ”

"Hmm." Qi Yuan nodded, "It's good if you think it's simple." After all, it's just a test of the 'national benchmark', and it won't be difficult to solve a system of binary equations. ”

She pulled out her pencil: "Solve it." ”

"Here?"

"Anyway, it's okay to wait for the food to be served, I'll help you take a look."

"Tsk, I think this is contempt for me, such an adult still has to solve this kind of problem."

"Then you can solve it. Write the steps clearly, try to write a little longer, and keep the volume neat. Although both can be solved by one and two, both are correct. But the syllabus is a binary system of equations, so you can solve it according to the binary. ”

Shang Luo took the pencil and began to solve the problem.

Solution: Let the rabbits have X and the chickens have Y

X+Y=49

A: There are 48 chickens and 1 rabbit.

And Shang Luo is not writing Arabic numerals, he knows that Da Ming uses flower codes as a number system here, and 49 is written as 〤〩.

Step by step, he finished the whole problem in a standardized way, which was very standardized, and it didn't take a minute before and after.

However, when he raised his head, Qi Yuan on the opposite side had already stood up, looking at her over half of the table, Han Xingzhi on the left, and Wen Yuan on the right also widened their eyes, even Lu Liang, who was the farthest away

"You guys. . . What do you think I'm doing? ”

"Ah" Han Xingzhi rubbed his eyes and confirmed: "Big brother is really shocking, shocking." ”

"What you wrote" Wen Yuan looked at it for a long time, he had some words on his lips, but he didn't say it.

"What kind of book did you write?" Qi Yuan said it, "What is this?" Why do you write a lot of Latin XY and what are you doing on it? What is this cross? What is a word? ”

"Ahh I set the chicken to X, so I set it to XYZ?"

"Set XYZ? Tianyuan, Earth Yuan, and Renyuan, if the three are not enough, then set up A, B, and C. And what is this little 'ten'? ”

"Ah" Shang Luo was stunned, "This is '+', plus." ”

"That's what the plus sign says, big brother!"

Qi Yuan panicked. She took a pen and wrote a "beggar".

"This '丄' is the plus sign, and the minus sign is written as '丅'. You can see clearly, this is not the Latin letter T, this '丅' is pronounced '下' when it is written, and the symbol is minus. Got it? ”

"Ahh

"It's over!" Qi Yuan covered his head, "Who can understand what you write!" How do you write that differential calculus symbol? You can't make any more weird symbols, can you? ”

Shang Luo's hands trembled a little. It feels like I didn't find out until the last ten minutes of the exam that I missed a page.

The integral symbol ∫, the differential symbol d, he wrote it.

Qi Yuan turned the booklet to her side, and she was much calmer:

"Here, the integral is written as He, and the differential is written as 彳, which is the side of the two words product and micro. Where the hell did you learn math?"

"Ahh Ah, are you and I still saved? ”

"Your level of math, you should have no problem. But you have a big problem with your Mandarin level! It's over, you've been writing with that kind of ghost drawing from the beginning, and the exam is still ten days away, and I don't know if you can change it. By the way, didn't you take math classes at school? Yes! You slept for a few days, and then you didn't come. Hasn't anyone found out before? ”

"Ahh I've never written an equation in front of anyone before. Calculus has not been written. ”

He wrote it in front of the old businessman, but the old merchant never corrected him at all.

"But there should still be salvation, there should be salvation. Wait, I'll bring my brother's elementary school math textbook when I go back, and you can read it from beginning to end, and you should still be saved. It is made up from the first grade of elementary school. ”

(End of chapter)