Chapter 77: I am multiplying and dividing my priority
Originally, Liu Shan was very optimistic about this young man Xue Rengui. Not only was he tall and strong, but he also had a good mind.
The sister who wears this oil bottle also suffers from eye problems.
At that time, Liu Shan was still worried that Liu Ruyu would not have a good life if he married her, and he was not happy about it.
But he couldn't help but like his daughter Ruyu, so Liu Shan didn't stop her.
But now, Xue Rengui suddenly met a noble person, and in the blink of an eye he became a fifth-rank official. This is a higher-ranking official than the county magistrate!
At this time, Liu Shan felt a sense of crisis in his heart.
No, they must get married as soon as possible!
Otherwise, I might be beaten to the spot by a girl from another family!
Therefore, thinking of this, Liu Shan couldn't help but look at Xue Rengui and asked: "Rengui, you and Ruyu are not young anymore. When will your marriage be arranged?"
Xue Rengui scratched his head and said: "Uncle Liu, my parents left early, and I listen to you on everything about the marriage. That's it, that's it..."
After hearing the first half of Xue Rengui's words, Liu Shan was quite satisfied. This young man was good, and he had indeed seen the right person.
But after hearing the second half of the sentence, Liu Shan couldn't help but become anxious.
"What is that? Stop hesitating, tell me what's going on!"
Liu Ruyu also looked at Xue Rengui nervously, her heart in her throat.
Xue Rengui couldn't help but said: "Uncle Liu, it's like this. I've just arrived at Prince Liang's Mansion, and my salary hasn't been paid yet. This, this. But don't worry. If it doesn't work, I'll borrow money from His Highness Prince Liang first."
Liu Shan couldn't help laughing and said: "What did I think it was? So you are worried about this? You can rest assured. As long as you live a good life, I will rest assured. As for the betrothal gifts and so on, they are all trivial matters.
Wait until tomorrow to hire a matchmaker. After I go back, I will choose an auspicious day and you will be ready to get married."
Xue Rengui couldn't help but giggle and said, "I listen to you, Uncle Liu."
Xue Xiaoxiao laughed and said: "Brother, that's great! By the way, my sister-in-law is finally here. You can take her out for a walk today!"
Hearing this, Xue Rengui also nodded and asked Liu Ruyu to go out together.
The two had just confirmed their relationship. Although Liu Ruyu felt as sweet as honey in her heart, she looked very embarrassed.
When going out, Xue Xiaoxiao quietly stuffed a bunch of money into Xue Rengui's hand.
This money was not given by Li Min. Li Min never thought of this at all.
This was what Liuzhi sent over quickly because he was afraid that Xue Xiaoxiao would need to spend money after hearing the news.
…
But he said that it was rare for Li Min to come to class today because the old man Kong Yingda was still sick.
There was an arithmetic lesson in the morning class.
Wang Xiaotong, the arithmetic teacher, wrote a memorial to Li Shimin after learning Arabic numerals and arithmetic symbols last time, suggesting that these numbers and symbols should be promoted nationwide.
However, this suggestion was not adopted and ended up being nothing, which made Wang Xiaotong very frustrated.
There is no way, the emphasis on mathematics in this era is too low.
However, Wang Xiaotong attaches great importance to these numerical symbols and has begun to use these numerical symbols in teaching in his class.
Li Min took sick leave these days and did not come. Wang Xiaotong's preliminary teaching work has been completed.
After Li Min arrived, Wang Xiaotong began to ask questions as soon as he came up.
As a result, the first person mentioned was Li Min.
"Li Min, please calculate, what is three plus two minus five multiplied by zero?"
Li Min did some calculations and immediately said: "It's equal to five."
As soon as Li Min spoke, Fang Yiai laughed and said: "Zero, equals zero! How stupid, he can't even calculate such a simple question."
"Yes, it is equal to zero. How could this question be calculated wrong?"
"It's obviously equal to zero!"
Cheng Chuliang frowned and shouted: "It's obviously equal to five, can you count it?"
Qin Huailiang quietly pulled Cheng Chuliang's arm and said, "Stop shouting, the answer to this question is zero."
Cheng Chuliang said in disbelief: "How is it possible? How could His Highness be wrong in his calculation?"
In Cheng Chuliang's eyes, His Highness knew everything, and there was no way he could make a mistake.
Qin Huailiang could only say helplessly: "Your Highness really made a mistake in his calculation."
"Okay, clear it up!"
Wang Xiaotong scolded, and the class became silent.
"However, Li Min did make a mistake in calculating the answer to this question. The correct answer is zero."
What?
Li Min said in disbelief: "But the answer to this question is obviously five!"
Hearing Li Min's words, Wang Xiaotong couldn't help but frowned.
Originally, after Li Min raised a difficult problem and proposed numbers and arithmetic symbols, Wang Xiaotong was astonished by Li Min.
But today, he miscalculated such a simple question. Wang Xiaotong was inevitably disappointed.
But now, after he said his mistake, he was still stubborn, which made Wang Xiaotong feel even more disappointed.
Wang Xiaotong couldn't help but name him and said: "Fang Yiai, get up and tell Li Min why this question is equal to zero."
Fang Yiai stood up happily and said proudly: "Yes, sir. Li Min, come on, let me tell you why this question equals zero. Because three plus two equals five, five minus five equals zero, and zero multiplied by zero still equals zero.
So the final result is zero."
Li Min looked at Fang Yiai as if he were an idiot and said, "But you should calculate multiplication and division first and then addition and subtraction! Five times zero equals zero, three plus two equals five, five minus zero equals five, and the final result is not
Is it obviously five?”
Fang Yiai couldn't help but blush and asked: "Who said to calculate multiplication and division first and then addition and subtraction? It's obviously done from front to back!"
Damn it, you are cheating!
As a result, even Wang Xiaotong asked: "Yes, Li Min, why do you calculate multiplication and division first and then addition and subtraction?"
What's the reason for this?
Isn’t that what operator precedence looks like?
However, suddenly, Li Min reacted immediately.
This is the Tang Dynasty, and arithmetic symbols have just come out, so it is even less likely that they know the priority of arithmetic symbols.
The question is, why should it be prioritized?
Is it like what a certain advertisement said, multiplication and division are women, I am a woman and I have priority?
When I was in school, the teacher taught me this. Everyone knew to do multiplication and division first and then addition and subtraction. But as for why this was done, I really didn’t delve into it.
After being asked this question, Li Min was really confused.
Fortunately, Li Min thought about it for a while and figured out the truth.
Li Min couldn't help but ask: "Sir, please, I move three bags of rice at a time, and Fang Yiai and Li Tai move two bags of rice at a time. How many bags of rice do we move in total at a time? How should we list it?"
