After explaining the nouns such as balance, mass, volume, etc. to their granddaughter, Old Man Kong continued to focus on the old paper pile, intending to find a correct algorithm from it that could solve the twelve balls that are disgusting.

The disgusting pool manager is pouring water while refueling water; Xiao Ming, who is amnesia, always asks the puppy to pick up things; a carriage that is walking opposite to him; a carriage that is moving with his back; a carriage that is fast and a carriage that is slow….

Old Man Kong didn't know how Li Chengqian's head grew and why he had to make so many messy things. In his opinion, these things were useless at all, and they were completely wasting time.

But there is no way. If you want to use his textbook, you have to count his questions. This is a supporting method. Otherwise, those elementary school questions will be too simple for students and will often be solved in less than much time. This will make the teacher feel embarrassed.

"Grandpa, grandson has finished doing it." About half an hour later, Kong Wen put a piece of paper full of words on Kong Lao's table.

"Are you finished?" Kong Yingda raised her head, her eyes flashed with confusion, and after a while, she repeated in surprise: "Are you finished?"

"Well. It's all written on paper." Kong Wen said, pointing to the paper on the table.

"Oh, grandpa, look." Kong Yingda, who was wearing a pair of presbyopia, picked up the paper on the table and looked at the lines of beautiful small calligraphy written by his granddaughter with great effort.

After a while, Old Man Kong's eyes became brighter and brighter, his empty hands were wiggling in the air, and finally slapped his thighs hard, regardless of whether his granddaughter could bear it, and shouted: "That's great, great."

"Grandpa! Grandpa!" The little girl was startled by the crazy look of old Kong and called out repeatedly, afraid that her grandfather would lose her mind, so she would be very guilty.

"Oh, grandpa is happy, happy." After being called several times, Old Man Kong finally came to his senses a little. He held the paper in his hand awkwardly and said to his granddaughter: "Grandpa is going out. Wen'er thinks about what he needs and we will go buy it together when grandpa comes back."

After saying that, without waiting for Kong Wen to say anything, he lifted his robe and trotted out of the door, and almost disappeared outside the courtyard wall in a blink of an eye. The little girl Kong Wen was stunned for a long time when she was looking at her quickly.

"Your Majesty! Your Majesty!" Outside Li Er's study, Old Man Kong, who was breathing, couldn't wait for the eunuch to communicate with him, so he simply shouted.

"My dear, why are you so anxious?" Li Er looked at Old Man Kong's sweaty look and made him pant and asked the maid to bring tea.

"Your Majesty, I have solved this question." Old Kong took out the piece of paper written by his granddaughter from his arms and asked the eunuch to pass it to Li Er. At the same time, he shamelessly took the credit for his granddaughter.

"Kong Qing..." Li Er took the white paper handed over by the eunuch, glanced at it, put it aside, tapped his fingers on the table, and said with a look of embarrassment: "Kong Qing is a hero in the Tang Dynasty, and it will take three days to solve this problem. What would happen if other mediocre people? Have Kong Qing ever thought about it?"

In an instant, Kong Yingda felt like she was struck by lightning, and she froze on the chair, with only three words in her mind: I was fooled!

In fact, since the moment Li Chengqian came up with the question, Kong Yingda should have known that he had lost, because what they argued was not the answer to the question, but the time to answer the question.

However, Lao Kong was confused by Li Chengqian at that time. After getting the problem, he was also focused on the problem and completely ignored the key to the matter.

Three days have passed now, and it is unnecessary to discuss anything. Li Er's mind has confirmed that Li Chengqian's statement: There is no point in continuing to write. Even the teacher doesn't understand what is written in the book, so how can you teach students?

Just like the betrayed old Kong didn't know how he came out of the palace, he returned home in a daze and shouted, "Liar!" and fell head-on, just like what he said in the memorial a few days ago, he couldn't get sick.

The miserable Li Chengqian was in trouble again and was in trouble. He was angry and fainted from the court's important officials. The old man put the charge on his head, claiming that if Old Man Kong traveled to the west, the blue brick and tiled house in Zongzheng Temple would definitely make him feel happy.

Li Chengqian didn't know what the relationship between Lao Kong's illness and himself, and he even vaguely felt that calculating the problem to the Journey to the West was a beautiful story.

But no matter how much I think about it, I still have to go visiting him. On an afternoon when it was drizzling, the depressed Li Chengqian came to Kong Yingda's mansion with the old man's reward.

Then he discovered something very embarrassing, and that little girl Kong Wen was really glaring at him.

There is no way, just bite the bullet. After giving the teacher's greeting to old Kong, Li Chengqian hugged Kong Wen and said, "My brother is a good man, I have met my second sister."

As Kong Wen snorted coldly, Old Kong lay on the bed and asked in confusion: "You two know each other?"

"Oh, that's it." Li Chengqian said without waiting for Kong Wen to answer: "When the student was in Qingzhou, he was fortunate to meet Brother Mingli, and he also formed brothers of different surnames at that time, so he was called Kong Wen's second sister."

After hearing Li Chengqian's explanation, Old Man Kong turned his head and glared at his granddaughter fiercely. His eldest grandson Kong Wen and Kong Mingli have been in Chang'an. It is completely nonsense to say that Qingzhou is sworn brothers, and it is obvious that his granddaughter is going out to make trouble under the name of her brother.

But now is not the time to talk about this. Since Li Chengqian has not discovered it, it is impossible for Lao Kong to expose his granddaughter's secret in person, otherwise who knows whether there will be other troubles?

If Old Kong didn't mention it, Li Chengqian naturally didn't mention it. He pretended to be another identity and became sworn brothers with Kong Wen. He also vowed to recommend Kong Wen and the "Crown Prince" at that time. Now he showed his true appearance in front of the main person, and the embarrassment almost made him feel ashamed.

The little girl Kong Wen claimed to be smart and believed that she would not tell the fact that she was deceived by Li Chengqian. Since Li Chengqian foolishly didn't recognize her, then she should hide it. Otherwise, if she said it bluntly, the little girl's face would be lost.

In this way, the atmosphere in the room seemed very strange. Old Kong thought that Li Chengqian did not recognize his granddaughter, but he did not know that he had used his fake identity to become a sworn person. He was afraid that he would commit the crime of deceiving the emperor and deceiving the secret, so he decided to hide it;

Kong Wen also thought that Li Chengqian did not recognize her, but it was a fact that she was deceived by Li Chengqian. So the little girl didn't want her grandfather to know that she was deceived, so she also decided to hide this secret.

The only one among the three, Li Chengqian, had to hide the fact that he knew everything in order not to make the atmosphere even more awkward.

Three people were three-pointed, and each thought that they had deceived others, and they were hypocritical and perfunctory to the other two.
Chapter completed!