Chapter 0173: Test the Killer

I really don’t like the way the ancients kept their accounts, it was a mess. This was a book of books.

The daily expenses and the amount of accounts are recorded in the plan.

Regarding Lu Boyi's request, whether it is a problem or a school entrance exam, Zheng Changsheng decided to show his skills at this moment.

Zhu Biao was very puzzled, why Zheng Changsheng didn’t even need to make a calculation? Isn’t this a joke?

Without abacus, can you calculate the expenses of the account book by just using the ghost drawing talisman on a piece of white paper?

This is obviously a bit unrealistic. He wanted to laugh, but due to the etiquette and the good qualities of the prince, he did not laugh after all.

The father is so ridiculous. Although this child can be selected from so many people as his companion to the emperor's brothers, he can understand the accounts of this twisted ghost-drawing tadpole-like thing?

The Zhan Shi Mansion has a lot of work on document calculations, and it can be said that he is the data support site of his father.

This is just an ordinary account book of the expenses of the Zhanshi Mansion. If the expenses of the court were collected from the serious court, could it be calculated clearly in this way like a child playing?

But Zheng Changsheng's face was tightly tight, and he seemed to be very serious.

Haha~ Zhu Biao was so depressed that he couldn't be more depressed.

A quarter of an hour passed, and Zheng Changsheng put the pen in his hand: "Your Highness, Mr. Lu, calculated it. There are 1,236 taels, 7 cents, and 5 cents, 5 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 20 cents, 2

Cough Prince Zhu Biao took a sip of tea and almost vomited it out.

That's all out? Is it right?

He put down the teacup in his hand and looked at Lu Boyi: "Lu Zhan Shi, can you see, Zheng Xiao Zhan Shi, be correct?"

Lu Boyi is one of the first two. It seems unlikely that he can even calculate the account book so quickly.

He took the account book, pulled the abacus, and calculated for about an hour and a half. He was stunned.

The result calculated was exactly the same as Zheng Changsheng's. This is really a ghost.

He rubbed his eyes and made another calculation, but the result was still exactly the same as Zheng Changsheng's.

Lu Boyi looked at the prince Zhu Biao with helpless expression and said, "Your Highness the Crown Prince, the result is correct."

The smile on Zhu Biao's face immediately became stiff, and he was shocked.

This is too awesome. In just a quarter of an hour, he actually completed the workload of a veteran abacus in half an hour.

But is his ghost-like talisman-like thing?

How did he calculate it? He scratched his forehead and looked at the blank piece of paper written by Zheng Changsheng.

There are various symbols "+, one, x, ÷, and 1, 2, 3, 4, 5, 6, 7, 8, 9, 0"

What's going on?

Zhu Biao put his contempt at this time. It seemed that his father was really aimless. Just say, how could the Zhan Shi Mansion send in a useless person?

"Zheng Xiao Zhan, what does this symbol mean? How can you calculate the result so quickly?"

It’s okay, hehe, just say that this is a common calculation method in later generations, something that even primary school students can handle. It seems that in the current Ming Dynasty, this is a very profound science.

So what about the prince? Those who don’t understand will still be confused.

"Your Highness, this is a simple calculation method founded by my ancestors of the Zheng family. This involves multiplication formulas and simple addition and subtraction and multiplication and division.

This method is extremely convenient to use, but in fact, it is easy to master as long as you understand the tricks.

You see, aligning these two data one by one, adding them will be the sum of two numbers.”

Zhu Biao is worthy of being the son raised by Lao Zhu. He is very modest and cautious, and studious.

He kept asking questions, and Zheng Changsheng taught Zhu Biao simple addition and subtraction step by step.

Even Lu Boyi, who was on the side, abandoned the abacus and took a pen in his hand to calculate on paper.

At this day, except for the time when eating and going to the bathroom, almost both of them were learning arithmetic with Zheng Changsheng.

Moreover, Prince Zhu Biao ordered all the staff of the Zhan Shi Mansion to come and listen.

This method is so easy to use. After the abo numbers correspond to the ones, twos, threes, fours, sixs, and seventys of Chinese characters, I realized that it turned out that this number was so convenient to use.

With the fact that there were too many documents in the Ming Dynasty, if we used such a concise and clear counting method to record the books, it would seem clear at a glance, which would be so convenient.

I also spared the hard work of my father reading the data every day. Zhu Biao had completely forgotten his fourth brother Zhu Di's request to him now.

Zheng Changsheng is a treasure in his eyes now, and he cannot be let go easily.

There are many friends who read, but there is only one Zhan Shi who knows this calculation method.

Isn’t it clear which one is more important?

This is really a treasure. It’s really a sight to the heavens. Only by bringing down such a person to me.

The ancestors and ancestors bless our Zhu family in heaven.

He felt a lot of emotion in his heart, and he couldn't even say anything excited.

When he was in a state of inseparableness, he hugged Zheng Changsheng's small shoulder and kept praising him: "Staff Zheng Xiaozhan, it is really the blessing of my Ming Dynasty.

From now on, my Zhanshi Mansion plans to take out an hour every morning to teach mathematics.

Don’t hide your craziness or be stingy. You must give what you know to the pen and pen officials in the mansion.

In addition, I plan to apply to my father, so I would simply run a xueban in the Zhanshi Mansion. All appointed officials must undergo mathematics training before taking office.

After learning this, it will be much more convenient to exchange data on future documents, documents, books and books."

Well, Zheng Changsheng was treated by Prince Zhu Biao as a national sage.

This is a bit embarrassed. This is just some of the most basic things in mathematics. If we tell you all the things we know about mathematics, it would be impossible without a few years.

Okay, take your time, at least today I am amazed Mr. Lu.

Look at his serious calculations at the desk, hehe, are we qualified to be your grandson-in-law?

Zheng Changsheng felt secretly proud.

Especially when he came out of Zhan Shi's mansion, the old man actually rode a carriage with him, and was constantly asking questions about mathematics.

The old man is really quick and studious, so he is not ashamed to ask questions.

Mr. Lu learned the multiplication formula on the carriage.

When the car was parked in front of the mansion given by Zhu Yuanzhang, the old man still said unsatisfiedly: "Since Mr. Zheng has arrived in front of me, why not talk about it at my home today?"

Ah? Don’t be happy so quickly, okay? This invitation is like raining in time.

Zheng Changsheng didn't know how to enter the Lu family's gate, but he didn't expect that the old man would take the initiative to invite him.
Chapter completed!