The housekeeper of Cheng Mansion is Cheng Yanjin's old subordinate. From Wagangzhai, he followed Cheng Yanjin and was loyal. He also knew that there was a great character hidden in the mansion and couldn't be leaked out, so he stopped Kong Yingda, Yu Zhining and others from being put in the backyard.

Zong Xiu glanced at Yi Qingqing, who was also sensible and made a salute: "Son, the slave and maid will retire first." ”

“……”

Slave, slave, Zong Xiu had a headache when he heard this word.

"Sooner or later, I'm going to have to let her take that word away."

Zong Xiu looked at the back of Yi Yi's departure and muttered quietly.

When Yi poured out his feelings, he bumped into the housekeeper, and the housekeeper directly lowered his head and did not speak. It wasn't until Yi entered the wing room next door and closed the door that the housekeeper entered the room and said, "If Zong Gongzi wakes up, I will call Master Kong and Lord Yu and let them come over." Several adults have come by holy decree, and there is no room for delay. ”

"Okay, let them in."

Zong Xiu didn't have to think about it, he knew what Kong Yingda and his group were here for.

For the multiplication and division of the abacus.

Yesterday, when Zong Xiu had a whim and wanted to use the [Abacus Formula] to exchange for Yi Confession, he guessed that Li Shimin would be eager to send someone to ask for the multiplication formula.

The numbers and formulas have all been figured out, and Zong Xiu doesn't mind tinkering with the abacus formulas of later generations in advance.

After all, now that the Tang Dynasty has established the country, even if Zong Xiu does not make up the abacus in advance, in the late Tang Dynasty, the multiplication formula of the abacus will appear, and in another one or two hundred years, the formula will also appear in the Song Dynasty.

What he did was just to bring the [abacus] addition, subtraction, multiplication and division formulas that were sorted out by later generations into this world in advance.

The housekeeper of the Cheng Mansion went fast and came back quickly.

After just a cup of tea, he had already led a dozen pot-bellied old Confucians to walk in, and the leader was Kong Yingda, the priest of the country.

As soon as these people came in, they tacitly ignored the injury on Zong Xiu's back.

Kong Yingda said with a smile: "Sect Assistant Teaching Guo is a genius in arithmetic, and a few days ago, 'numbers' and formulas were just reported, which created the abacus formula. At the behest of His Majesty, this official and all of you have come to ask for advice, and I also ask the assistant to teach me for advice. ”

Zong Xiu lay on the bed and hummed: "Lord Sacrificial Wine, Your Majesty didn't have any other orders when you came?" ”

Kong Yingda thought for a while and said: "Your Majesty Yanzong's assistant teacher is injured, and Xun is granted leave, and before Assistant Teacher Xu Zong's injury recovers, he can recuperate at home, and when he recovers, he can go to Guozijian to report." ”

“……”

Zong Xiu thought that Lao Li would give a fake reward or two, but now it seems that Lao Li has already made up his mind not to give a reward at all.

Think about it, he exchanged the 'abacus formula' for Yi Confession, Lao Li didn't cut off his head, and he still wants a reward, dreaming.

But fortunately, Lao Li also asked him to teach in Guozijian, indicating that he was not so mediocre that he hated him because of a woman.

"Teaching assistant? Teaching assistants? ”

Kong Yingda saw that Zong Xiu suddenly lost his mind and called softly.

"Uh-huh, it's okay, where did you just go?" Zong Xiu came back to his senses, saw Kong Yingda and a dozen or so great Confucians holding a new abacus, and hurriedly said: "Yes, yes, the business is important." ”

Kong Yingda sneered and said: "Assistant Professor, you are injured, if it is inconvenient to demonstrate, you can dictate the formula, I will wait for the transcription, if there is anything I don't understand, I will ask you again." ”

Zong Xiu remembered the abacus formula, but he really dialed the abacus, and his skills were definitely not any better, so he called the housekeeper to prepare the pen and ink, and Kong Yingda personally wrote it, and he dictated.

The abacus mantra of later generations, spanning thousands of years, was born out of thin air, appearing in the eight years of Zhenguan in the Tang Dynasty!

When the mantra was transcribed, Zong Xiu let everyone practice it. He spoke in detail, so meticulous that he didn't miss a single detail.

A group of great Confucians listened to it with relish, and the abacus beads collided in their hands, and the crisp sound was mixed with the sound of birds and insects in the early morning, which was extremely pleasant.

Next door, the excited Yi Confession was not sleepy, at this moment she was leaning against the wall, eavesdropping on the sound of abacus from the next room, as well as Zong Xiu's gushing explanation, and the corners of her mouth outlined a shallow smile.

The formula of abacus in later generations is not long, but it can be really practiced, but it is extremely troublesome. Rao is the people who came to learn the formula are all great Confucians in the world and have bright minds, but by the time they really master the multiplication and division formulas of abacus, it is already afternoon.

Zong Xiu was hungry and sleepy.

Although the housekeeper in the middle served tea a few times and asked if he wanted to eat, he was scolded back by Kong Yingda, Yu Zhining and others on the grounds that "studying knowledge should be wasted and forgetting to eat, how can you waste your knowledge because of hunger".

In the afternoon, Zong Xiu finished talking about the last difficult point, his face was pale, and his lips were dry: "Master Kong, Lord Yu, my lords, there is nothing to ask now." ”

Zong Xiu was hungry, and he hadn't slept for a day and a night, he felt that if he asked again, he would have to die suddenly.

"Hehe, the sect's assistant teacher has worked hard, and I didn't really realize what it means to have a heaven outside the sky and someone outside the world. In the future, if you have free time, you must have a good discussion with the sect assistant. Yu Zhining took the abacus and played haha with Zong Xiu.

Zong Xiu hurriedly waved his hand: "Don't." I'm afraid of you, you are worthy of a generation of famous Confucians, and the end of this study is afraid. ”

Kong Yingda laughed: "The assistant teacher of the sect is too modest, you have poetry and books in your belly, and you have talent and learning, I admire you." Now that you are injured, we have bothered you, but the Holy Command is difficult to disobey, and we have no choice. ”

Zong Xiu smiled bitterly a few times and didn't say anything.

Seeing that Zong Xiu's face was pale, Kong Yingda beckoned the others who came to take the abacus, and at the same time arched his hand: "Assistant Sect, when you are well raised, we will discuss it again." These days, you can take care of your injuries, and there is no need to worry about the arithmetic school, there is an abacus formula, which is enough for them to learn for a while. ”

"Teaching Assistant, take care."

There is no order to learn, and the one who achieves is the first. In the early days of the Tang Dynasty, there were few people who were jealous, and they were all broad-minded, and they all knew that when it came to arithmetic alone, the young man in front of them was much higher than them, and there was a little more kindness in his words.

Kong Yingda even instructed: "The sect's assistant teacher is good at recuperation, don't leave any root causes." With your talents, we should be closer and closer in the future. ”

Kong Yingda said sincerely, and there was no falsehood. And there is another meaning in these words: We Shilin have accepted you.

The Confucian family has been a Shilin family since ancient times, and Shilin in this era is a force second only to the imperial power. Kong Yingda, as a descendant of the Kong family, said this in person, which shows the weight of it. If ordinary scholars could get Kong Yingda's words, they would have jumped up excitedly.

Zong Xiu said with a smile: "Thank you for your love, I am only shallow in the next year, and there are still many places to learn, so I will have to learn from you adults in the future." This time I am injured, and it is inconvenient to send each other, so please forgive me. ”

Kong Yingda laughed: "Don't dare to be, don't dare to be, the sect's assistant teaching is a young talent, and the old man also admires it." The assistant professor of the sect is resting, and when the injury is healed, I will definitely have a good discussion with the assistant professor of the sect. Farewell, farewell. ”

After speaking, Kong Yingda led a group of Confucians to leave the door, and the housekeeper who had been guarding the door nodded and sent people away, before entering the house and saying, "If the prince wants to eat something, the little one will go and prepare." ”

Zong Xiu lay on the bed, his stomach was already hungry, and said, "Just get some food." By the way, why don't you see Brother Cheng? Could it be that you are still resting? ”