Come on, Your Highness

After the Spring Festival, there are fewer papers sent in. As long as it is not an urgent report from [-] miles, Emperor Tiangan can wait until the next year to approve it.

After a busy year, I finally took advantage of this holiday to relax and relax.

Even though it was winter, the harem was full of flowers, courteous Nong language, tactful flattery, Emperor Tiangan lingered for several days, it can be seen that he was happy.

At this time, no old pedant said bluntly that he was obsessed with beauty and forgot about government affairs.

Xiao Hong was embarrassed to pull Emperor Tiangan out of the harem, so he could only wait patiently until it was reported that Sheng Jia had returned to the main hall of the Qing Dynasty.

He just put on his cloak, put on the paper, and went to face the saint.

When eating too much honey and getting tired of it, although the women in the harem are fat and thin, they have all styles, but they are generally the same to Emperor Tiangan, they are attentive and careful, even if they are acting coquettishly naive, they still look at his face from time to time.

It doesn't make much sense to read too much.

At this time, he just wanted to be alone.

In the Qingzheng Hall, Emperor Tiangan took a Mo Naihe and disassembled it. This kind of educational toy will be played by a large number of adults in later generations. It is also a good choice for leisure and entertainment after intense work.

I don't know when, he also developed this habit.

Then, Xiao Hong came.

"Father, my son finally waited for you to come back!"

Xiao Hong took off the cloak and jacket on his body, handed it to Eunuch Huang, and greeted him with a smile.

"This point..." Emperor Tiangan raised the teacup in hand and said, "Is there something wrong?"

"My son misses you."

Emperor Tiangan raised his eyebrows and looked skeptical, so Xiao Hong sneered, "It's also because my son has encountered a problem, and I want to ask my father for help."

This is the right answer.

Emperor Tiangan eased his expression, "Tell me."

Hearing this, Xiao Hong took out the warm paper from his pocket, walked towards the dragon case, saw Mo Naihe who was scattered at the table, and said in surprise, "Father, you also play this."

Emperor Tiangan coughed, and pushed the wooden piece aside, "It's just to pass the time, what are you holding in your hand?"

"Oh, a few arithmetic problems, hey, my son is stupid, I really can't think of a good solution, please show me."

A sheet of dozens or hundreds of papers with the same number added was spread out in front of Emperor Tiangan.

After a cursory look, Emperor Tiangan had a plan in his mind, but there were already answers to a few questions above, and the handwriting was so recognizable that the ugly ones must belong to Xiao Hong.On the other hand, the neat style of the pavilion made his eyes shine, and he exclaimed: "This is a good word, where did it come from, and who made the question?"

"Xi Chao!" Xiao Hong blurted out.

Emperor Tiangan looked over in surprise, Xiao Hong laughed a few times, and then slowly explained: "The title was written to me by Xi Chao, but it was written by my third uncle, his father."

"He Yu?"

"Yes, didn't I go to Wei Guogong's mansion on the second day of junior high school? We didn't do anything all afternoon, just in his yard. Xi Chao was sorting out his father's notes. We just saw this and thought it was very interesting." Lie Well, the more the compilation is smoother, Xiao Hong felt that it was necessary to give He Xichao a good impression in front of the emperor, so he said, "Father, you don't know, Xichao knows all these questions, it's very fast, but I can't!"

Emperor Tiangan smiled and said, "Of course you don't. You haven't learned the method of multiplication and division. How do you do it?"

"Add them up one by one, and I counted the time for a stick of incense to add up the 51 fours."

"A stick of incense?" Emperor Tiangan shook his head with a smile, "It's long enough, but it's still wrong."

"Ah?" Xiao Hong's face was struck with lightning, "How much should it be?"

"Two hundred and four."

Xiao Hong: "... how do you calculate it?"

"Multiply five and four into two to get two hundred, one and four to four, so the final number is two hundred and four."

Xiao Hong sighed with admiration: "You are really good, you can calculate so fast!"

Emperor Tiangan was slightly proud in his heart, but he didn't show it on his face, "It's just the simplest method of multiplying."

"Then teach me." Xiao Hong's eyes showed eagerness.

Emperor Tiangan thought about it for a while and found it a little troublesome, so he said: "Addition and subtraction are the basis of "Nine Chapters". Next, you should learn the method of multiplying products and dividing remainders. After that, you will be enough to learn arithmetic, so there is no need to worry."

"But now my son wants to know how it came about. I promise Xi Chao will show him the paper tomorrow."

"Know what you know, don't know what you don't know, why don't you pretend to understand?" Emperor Tiangan asked calmly while drinking tea.

Xiao Hong curled his lips and replied: "What you said is related to your son's face. Xi Chao admires me so much, how can you let him down!"

Emperor Tiangan was left speechless by that unknown face.

Xiao Hong urged: "Ah, you didn't look for the empresses of the palaces today, and you didn't write a paper to approve it. It's not time to go to bed. Why don't you play Monet and do exercises with your son to pass the time?"

Emperor Tiangan sighed deeply, and seeing Xiao Hong's eager look, he frowned and picked up the paper again, only to take another look, he clicked his tongue, "Hong'er, compare your word with others... "

"My son knows! You can't compare, he's ugly to death, so don't pay attention to your son's words!" Xiao Hong was a little mad, "It's hopeless, just ignore it! Read the question, read the question."

Emperor Tiangan was very helpless. After reading it, he found that they were all problems that could be easily solved by the method of product, so he said: "There is an article "Fang Tian" in "Nine Chapters Algorithm". Horizontal is width, and the product of length and width is the square field, and all these problems can be solved by this. For example, if 51 is entered into length, and four generations are entered into width, we get [-] square fields."

"product……"

"There are formulas."

"The formula...is it long?"

"It's not bad."

So Xiao Hong boldly said: "Why don't you write to me now."

When he saw the pen and ink on the table, he quickly sharpened the ink diligently, even dipped the pen, and handed it to Emperor Tiangan respectfully.

Seeing his eagerness, Emperor Tiangan didn't take the pen, but instead laughed and scolded: "You, if you have this persistence in serious study, I will be very pleased. You say you, why don't you put more attention on the serious business? "

Xiao Hong was very confident at the moment, he said: "You are wrong, my son has not delayed his study, "Spring and Autumn", the master has just started, and my son has already recited the full text."

This time Emperor Tiangan was really surprised. He saw Xiao Hong with his chest straight, his face full of pride, and his eyes seemed to be saying "take the test, take the test, let you take the test", he knew that Xiao Hong was not talking big .

Is the sun coming out west?

The accident happened so suddenly, Emperor Tiangan was very curious, "Why did you change your temper?"

"I was scolded by you that day. I told you to work hard. I really didn't feel overwhelmed. Father, I can really do it." Xiao Hong said seriously, "If you don't believe me, you can test your son as much as you want?"

Xiao Hong's gaze did not flicker, which is the confidence of those who are prepared.

Emperor Tiangan smiled, "No, I believe you."

Xiao Hong also grinned, and handed over the pen again, this time Emperor Tiangan took it.

Multiplication is the same as addition and subtraction, both of which are used in daily life. Although Emperor Tiangan didn't memorize it for many years, he became silent after a little thought.

"Multiplication of one and one is one, multiplication of one and two is two... multiplication of five and four is twenty, multiplication of five and five is 25... nine and nine are 81. Father, this is only up to nine or nine, then What about 51 fours?"

"It's all based on this, combined with the solution of the paving brocade, or split, multiplied and added together."

Xiao Hong was confused now, "My son doesn't understand."

"I haven't learned the product method yet, so it is naturally difficult. The master will teach it next time, so just listen carefully."

"Okay, the answers to other questions..."

"I'll tell you."

Holding the two papers, Xiao Hong was satisfied, and complimented before he left, "Father, my son is at ease now, and if there are any questions he doesn't know in the future, it's just right to come to you."

Emperor Tiangan waved his hand, signaling him to leave quickly.

He Xichao received Xiao Hong's paper, saw the accurate answer, and smiled slightly.

Turning to the back, there is also a multiplication formula.

"This saves me trouble"

Under the formula, He Xichao took up a pen and wrote three words - recite it.

Then sent it back.

He Xichao's restraint was lifted.

He wrote down a name card and sent it to Xie's Mansion on Liu Ting Street. See you tomorrow.

Xie San posted back on the same day, waiting for your visit.

Naturally, he couldn't leave empty-handed for a door-to-door visit. When He Xichao was thinking of something decent and affordable to give, He Xiang came, accompanied by a gift.

After all, the Xie Mansion is different. Although Wei Guogong felt that He Xichao wanted to worship Mr. Xie Ge as his teacher, it was a dream, but deep down in his heart, he still had some expectations.

It was carefully prepared, so this ceremony is naturally the most suitable.

It saved him trouble, He Xichao accepted it with a smile, and asked Ah Fu to carry him into the carriage.

Xie's mansion is a family of humanities, different from Wei Guogong's mansion which is full of power and dignitaries, the pavilions and pavilions inside are more about the artistic conception and elegance, but if you look closely at the materials used for the furniture and decorations, they are very particular, all of them are top-notch.

He Xichao got off the car at the gate of Xie's mansion, Ah Fu sent a greeting card, and someone led him to Xie San's courtyard.

Xie Sanzheng'er is the grandson of the Xie Mansion, who is famous for his early wisdom and is highly valued by the Xie Mansion. His yard is very spacious and directly connected to the garden on the side. Now the plum blossoms are blooming just right, with red and white spots, which is really beautiful.

Xie San stood at the gate of the yard waiting for him.

Xi Chao was wrapped into a ball, his whole body was snow-white, his face was buried in the fluffy neckerchief, like a rabbit in the snow.Seeing Xie San, he smiled, "Thank you brother."

Before Xie San could say hello with a smile, two boys suddenly ran out of the room, and ran up to He Xichao like monkeys. They opened their eyes and looked at He Xichao carefully, and then the shorter one turned around and shouted: "Uncle, didn't you say Is it a younger brother, why is it a younger sister?"

In the house, a stove was burning.

The four of them sat together on the couch, the boy covered his forehead and grinned with a bit of aggrieved expression.The other older one said to his cousin: "Idiot, little sister won't come to third uncle's place alone."

The maid served the tea, Xie San glanced at the two nephews, and said helplessly to He Xichao: "The older one is the fourth generation heir of the Xie family, Xie Siyuan, and the one jumping around with his head covered is Xie Sigui, what a disrespect, sorry Chao Haihan."

Of course He Xichao wouldn't care about a child, so he said, "Okay."

Xie San then introduced to his two nephews, "This is the grandson of Duke Wei, He Xichao. He is younger than you, and has better knowledge than you. Now he seems to be more polite. You two should learn."

"Really? What books did brother Xichao read?" Xie Sigui put down his hands on his head and asked.

He Xichao thought for a while, then looked at Xie San.

Xie San sneered, and said contemptuously, "I just finished reading "The Analects of Confucius", so I'm so sorry to ask."

Hearing what Xie San said, Xie Siyuan was surprised and said, "Then what did you read?"

"Xi Chao will have an entrance examination next year, and you two haven't finished reading those five books."

"So powerful!" The two boys' eyes widened in an instant.

He Xichao nodded with a smile while holding the tea, "This time I'm here to ask Third Brother Xie for advice."

"It seems that you have read the book I sent you."

"Well, during the Spring Festival, Xi Chao didn't go anywhere, just read a book in the house. I have some experience, and some puzzles, so I'm waiting to discuss it with Brother Xie."

The Spring Festival at this time is not like later generations. It has no New Year flavor at all, but it is lively and lively, especially children, running around in piles, making Noh crazy.

What is reading?Let's talk about it after the Lantern Festival.It is the same for the fourth generation of the Xie family.

Although He Xichao was in an embarrassing situation in Duke Wei's mansion, he was still a young master after all. He was able to give up playing and calm down to read a book, which showed his ability of self-discipline and self-control.

There were three books neatly placed beside He Xichao, two were the science examination books sent by Xie San, and one was his notes.

Xie San looked at the notes and was amazed. The calligraphy was not considered good in front of everyone in calligraphy, but it was quite neat. The examiners who marked the papers would like it very much. Of course, it also lost its own personality.

This is the determination to take the imperial examination!

Xie San took a look at He Xichao, although the child was small, his eyes were smiling, but his eyes were deep, and he was confident.

The notes have filled half of the book, and the entries are clear and not messy, which shows the intention.

Xie San sat up slightly, his casual attitude became serious, and said: "I won't be able to finish reading in a while, but if Xi Chao is not urgent, let me here, and I will send it to you personally in three days. How about answering questions then?"

He Xichao shook his head, "How can I bother brother Xie, Xichao will come to see you again."

"Alright."

"Besides, Xi Chao is arrogant. I did the test paper eight years ago, and I would like to ask Brother Xie to comment." He opened the scientific examination book on the side, took out the entrained article, and handed it to Xie San with both hands, "It's not for anything else, just I just want to know what my current level is and where I should work hard in two years."

What He Xichao said was calm, but it really shocked Xie San.

Have you reached the point where you can do the paper directly?

He took one of them, read the beginning, then put away the smile on his face, and looked up at He Xichao.

The latter still said unhurriedly: "Brother Xie, take your time, don't reply me in a hurry, and don't lower your requirements just because I am young. After all, in the college exam, it only depends on strength, regardless of age."

Xie San put away the article, and then said solemnly: "Xi Chao, tell me honestly, did you write this paper by yourself, or did someone give you pointers from it."

"Do it alone."

After the words fell, Xie San said nothing else.

Xie Siyuan and Xie Sigui, the two children looked at Third Uncle, and then at Xichao's younger brother, Xie Sigui whispered: "Brother, why is Third Uncle looking so serious."

"Shh...don't talk."

Xie San stared at He Xichao for a long time, while the latter just held the teacup to warm his hands, blowing on the tea noodles from time to time, with a satisfied smile in his eyes, as if he didn't know what Xie San was looking at at all, he was calm.

Finally, Xie San sighed: "A mere scholar, to you, it's like finding something in your bag."

He Xi smiled and said proudly: "That's natural."

The author has something to say: the nine-nine multiplication table has been passed down by word of mouth as early as the Spring and Autumn Period and the Warring States Period

You can also search for the method of paving brocade, which is similar to vertical calculation, and it is also quite clever.

There is also a counting method, which can be quickly made by simply multiplying multiple digits. There are videos, which can be found online.

In ancient times, practical mathematics was still very powerful, haha, while looking for information, Yao gained knowledge at the same time