Because it is not Yuanzheng now, the family banquet in the evening is only to welcome Li Yuan, Li Su and others back to Chang'an, so it is not too grand, Li Su did not eat at noon, and he was also hungry at this time, so he only cared about bowing his head to eat, and the son, Li Zhi, the four little guys who studied in Yizhou, received special attention at the family banquet.

When his son was tired of being by Li Shimin's side, Li Shimin asked, "Son, tell my father, what did you learn in Yizhou?" ”

"I know math, my son can now add, subtract, multiply and divide, and the sixth brother praises me for being smart!" The son stuffed a piece of meat in his mouth and muttered.

"Math?" Li Shimin has only heard of this term, but he doesn't know what this thing is used for.

Li Yun was the fastest in the four-person middle school, and when he saw Li Shimin frowning, he stood up and said: "Mathematics is what we call arithmetic, but the content in it is much finer than arithmetic, even the production of this classic car must use mathematics." ”

Li Shimin became more and more surprised and said, "This mathematics is really so magical?" ”

The others also showed puzzled expressions, and Li Chengqian said: "Since this mathematics is so magical, why don't Qilang hide it in front of everyone, and let us see what Yizhou is teaching now?" ”

Hearing Li Chengqian's words, Li Su raised his eyes and glanced at him, a little inexplicable, he didn't understand what he meant, he said: "Qilang, since the father and the crown prince want to know, you might as well show them it." ”

When Li Yun heard this, he said to Li Shimin: "There is a minister who is ugly, may I ask my father, from the beginning to one hundred, what is the total of each number?" ”

"One to a hundred?" Li Shimin was a little embarrassed and said: "This father can be calculated, but I'm afraid it will take a while." ”

Li Su said on the side: "Father, Qilang can calculate this in a few breaths." ”

"How many breaths? How is this possible, this is added one by one. Although my father is not very proficient in arithmetic, he can calculate it, but the time of a few breaths has passed. Li Shimin was skeptical.

Li Yun said: "Father, with some algorithms in mathematics, you can easily calculate this problem, as long as the first two numbers are added and then multiplied by fifty, the sum of Wu Qian zero fifty is obtained." ”

"Wu Qian Zero Fifty?" Li Yun's words not only did not make the people sitting understand, but became more and more confused, Li Shimin suddenly found that this question should not be raised, everything in Yizhou is extremely weird, "Later, my father will ask me to calculate, let's eat." ”

Li Chengqian frowned. At this time, it is really like playing the piano to a cow, but it is Li Yun who plays the piano.

Li Yun simply said a few words to make the people in the hall half confused, Li Yun was also very bored, and found that he suddenly had no common language with them, sat down again, sighed softly, and made up his mind to follow Li Yun after that.

The son was still young and didn't understand, Li Zhi and Li Zhen also shook their heads slightly, and their subsequent knowledge and education gradually raised their cognition to a higher level. When I came back, I suddenly found that there was an invisible generation gap between them and the people before them, because their cognition was detached from the backward Cheng dù of the past.

After eating in a hurry in the Baifu Palace, Li Su also had mixed tastes in his heart. This time he came to Chang'an, his heart was still a little drummed, and today's shape made him even more worried, he could see how much Li Chengqian and Li Tai were dissatisfied with him before, but today he couldn't see it at all. This is not a good thing, it shows that the two of them are hiding deeper, which is the source of his uneasiness.

So. Before Li Su came to Chang'an, he asked the shadow guard to secretly pay attention to Chang'an's troubles, and reported to him at any time, as long as it was not a large-scale army movement, there was still nothing that could threaten him, and he also wanted to return to Yizhou after Yuan Zheng, and the affairs of the enemy and the dark were not what he liked.

An hour later, the family banquet ended in harmony, Li Shimin and Empress Changsun left with their son-in-law and Li Zhi and others, while Concubine Yang asked Li Su to go back to Ziyun Pavilion with him, looking at Concubine Yang's face, she seemed to have something to say to Li Su.

Following Concubine Yang to the Purple Cloud Pavilion, Concubine Yang retreated from the subordinates on the left and right, first looked at Li Su carefully, and then suddenly sighed, "Su'er, since you fell into the well five years ago, you have become completely different from before, and in the past five years, everything you have done has been shocking, and this time you have supported your father and the emperor is indeed a little too much." ”

"Erchen has already felt it, what the mother wants to say is that Erchen has already made great achievements?" Li Su said softly.

"That's right, you and your father are father and son, but they are also monarchs and ministers, and the Northern Expedition can be said to be your single-handed, although your father praised you, but there may not be no fear of you in your heart!" Concubine Yang continued, "These days, every time he mentions you in front of me, his expression is different from before, and I feel that he is a little scared. ”

"I'm afraid, mother, this is not enough!" Li Su really didn't feel anything.

"Have you forgotten how your father took the throne?"

Concubine Yang's words made Li Su realize something, "Mother, my father is my father, and I am me." ”

"I understand, otherwise you wouldn't have saved your father, although your father trusts you very much, but there is a knot in your heart, the bell must be tied to the bell, this knot still needs you to untie, otherwise there will inevitably be some estrangement between your father and son." Concubine Yang stretched out her hand and combed Li Su's somewhat messy hair.

Li Su nodded, Concubine Yang meant that Li Shimin would always be worried about Li Su's actions to him, but this problem was a headache for Li Su, how should he unravel this section?

As if she saw Li Su's thoughts, Concubine Yang said, "Are you thinking about how to make your father feel at ease?" ”

"Yes, Mother, this is indeed very troublesome." Li said.

Laughing lightly, Concubine Yang said: "You are really a fan of the authorities, your father can let the world know in the newspaper that you have made great contributions this time, can't you publish an article in the newspaper about benevolence and filial piety, so that your father can understand your thoughts." ”

Li Su suddenly realized, "Mother, I understand." In this way, Li Su is equivalent to showing that he attaches great importance to the word benevolence and filial piety in front of the world, and how can he, who attaches so much importance to benevolence and filial piety, follow Li Shimin back then?

After saying this, Concubine Yang immediately changed the topic and said, "How is Yingying now?" I'm going to give birth in a few months. When she said that, Concubine Yang was full of expectations.

Li Su smiled bitterly, it seems that no matter in that era, the parents were most concerned about the issue of their children getting married and having children, Li Su said: "Don't worry, the mother concubine, I will definitely let you hold your grandson next year." ”

"It's almost, it's been five years, my mother is in a hurry to die, I thought Yingying couldn't get pregnant, this is the most painful thing for a woman." When Concubine Yang was in Yizhou, she was afraid that Cui Yingying would be uncomfortable, so she just asked, and now she said bluntly.

Li Su was speechless for a moment, it seems that he really hurt Cui Yingying, no wonder Cui Yingying had such a big temper that day, "Now you can rest assured, mother!" ”

Concubine Yang nodded with a smile, and continued: "However, your concubine room is still a little less, a prince still has only one main room, although Su Mo'er is good, but it is only a concubine room, you have to think about these two rooms, recently many nobles with five surnames and seven hopes have brought their daughters to visit me, I also understand their thoughts, I think how about my mother to Zhang Luo for you?" ”

Li Yu just wanted to sit down and immediately jumped up, for him, this wife is not more or less, when the time comes, the palace will play tricks in the palace, and he will have to accept it, "Mother, in the past, the sons and daughters could not be the masters, and now the sons are also old, let the sons and daughters make their own decisions in this matter, if the sons and daughters take a fancy to the little lady, will the sons and daughters say no?" ”

Seeing Li Su's appearance, Concubine Yang pointed Li Su's head with her finger, and said angrily: "There are so many princes, and it is so difficult for you to marry a woman in every right shape all day, you see your third brother, there are seven or eight wives and concubines?" You can count on five fingers. After that, he shook his head vigorously. (To be continued......)