The Three Kingdoms

"If you investigate like this, you won't be able to find many people next year."

Sun Quan had an idea, but he had to discuss the conditions first, and said: "Uncle, if I have a way to finish this account book within three days, then you just turn a blind eye and close one eye, how about it?"

"Three days? How is that possible?" Cheng Pu smiled dumbly and shook his head immediately.

"Just say you agree or not?" Sun Quan asked with a sly look in his eyes.

"Okay, if you really have the means to finish sorting out this pile of books within three days, even if uncle is trying to punish the lord, he will promise you that he will turn a blind eye to whether you will come to the sheriff's mansion in the future." One eye." Although Cheng Pu knew that Sun Quan was mature and intelligent, he absolutely did not believe that he had such a great ability.

"That's it, it's a deal!" Sun Quan smugly clapped his left hand and snapped his fingers, then stood up and hurriedly walked outside.

"What are you going to do?" Seeing Sun Quan's complacent look, Cheng Pu felt something was wrong, as if he had been fooled.

"Go get some tools!" Sun Quan didn't turn his head, but waved his hands behind him.

"Could he really have a way?" Cheng Pu was taken aback, but he still couldn't believe it, and muttered to himself: "Probably not, even the best math master can't sort out these ledgers within three days .”

Sun Quan called a few guards, and then went to a few carpenter's shops. In just one morning, he made what he wanted, asked a few people to carry a big box, and returned directly to the sheriff in the afternoon. government.

"Uncle, lend me your accountant!" Sun Quan said carelessly.

Cheng Pu didn't know what kind of medicine he bought in the gourd, but he did it anyway and handed over a dozen accountants under his command to him.

Sharpening knives and cutting firewood by mistake, Sun Quan began to teach a total of twelve accountants. He taught Arabic numerals: "Zero is 0, one is 1, two is 2, three is 3... ten is 10, and By analogy, one thousand 110 is 1111, easy to remember!"

"Master Quan, what figure is this?" Some accountants were confused.

"Zhongmou, I haven't seen these numbers before?" Cheng Pu looked at these Arabic numbers and asked doubtfully, "Is there any use?"

"This is my invention of numbers. From now on, they will be called... weights! These numbers can simplify the number and make it clear at a glance. As for the usefulness, it is great! Just keep listening."

Sun Quan couldn't explain to them what Arabic numerals are, so he directly took it as his own credit. As for plagiarism, he blushed for the first time, felt embarrassed for the second time, and felt guilty for the third time... The result became a matter of course. Because his face has no feeling.

Now that his face has turned Arabic numerals into weights, he no longer has the slightest sense of shame.

"This is the ninety-nine multiplication table, you all know it by heart! You can memorize it thoroughly." After teaching the Arabic numerals, Sun Quan produced all the ninety-nine multiplication tables that he used when he was a child, which immediately surprised the accountants. Incomparably surprised.

"Five five is 25, and the sum of five five is indeed 25. This ninety-nine multiplication table is amazing!" A cashier said in shock.

"Indeed, this can save us a lot of time." Everyone is in charge of the account room, and they are very sensitive to numbers, and they immediately saw the power of the nine-to-nine multiplication table.

[Text Chapter 57 Ledger]

Arabic numerals are numbers that subvert this era. The decimal system used is the simplest and most convenient algorithm. With the addition of the nine-nine multiplication table, these accountants become more and more amazed as they learn. In the end, they can only look at the young Sun Quan with indescribable admiration.

"Young master can actually invent such a powerful algorithm, it's heaven and man!" An old accountant looked at Sun Quan, and said more and more respectful to the second son of the Sun family.

"The number of powers will surely benefit everyone in the world! Your son will definitely be famous in history." Someone sighed.

Sun Quan smiled, and then said solemnly: "It's just a trail, nothing to worry about!"

In this era, he possesses knowledge that is more than 800 years ahead of these ancients. If it is really written down, he is definitely a great inventor, a greater inventor than Edison.

Sun Quan spent the whole afternoon on these accountants, treating them as elementary school students, handing over the Arabic numerals, nine-nine multiplication tables, and some addition, subtraction, multiplication, and division to them.

These accountants are originally in this line of work and are very sensitive to numbers, so their ability to accept Arabic numerals is not weak, and they can quickly find the rules, and some smart ones can draw inferences from one instance.

It was dark, and then Sun Quan got off work on time.

But this night, the twelve accountants were all obsessed with writing Arabic numerals here, and none of them could fall asleep. They didn't dare to waste any time to consolidate what Sun Quan taught overnight.

After learning the Arabic numerals and the rules of addition, subtraction, multiplication and division, even if they no longer work as errands in the prefect's mansion, there will be big tents wherever they go, and no one dares to underestimate them.

Even Cheng Pu couldn't ignore the "quantity" created by Sun Quan. Although he was not a serious accountant, he used to manage civil affairs in Changsha and had a great understanding of accounts. to him.

Sun Quan's power numbers and ninety-nine multiplication tables, as well as some rules of addition, subtraction, multiplication, and division, made him amazed. Sometimes he seemed to open Sun Quan's little head to see how long it was inside.

How can an eleven or twelve-year-old boy know so much? Is there really anyone in this world who knows it from birth?

But he was also very fortunate that Sun Quan was the son of his righteous brother Sun Jian, and he was in the same formation as him. Otherwise, if he knew that there were such strange talents in the enemy camp, he would definitely kill him at all costs.

……

"Okay, today I will teach you how to use an abacus!"

The next day, early in the morning, Sun Quan came to the Sheriff's Mansion, continued with the unfinished business, opened a big box, took out the abacus he hastily made yesterday, and then began to teach them how to make an abacus.

Before computers, this was the easiest, most accurate, and simplest computing tool.

"Abacus?" Cheng Pu looked at these strange things in amazement.

"How is this thing used?" A cashier in his thirties asked.

"This abacus is used in conjunction with the ninety-nine multiplication table. Adding means advancing and subtracting means retreating. There are signs on it. It's tens of millions..." Sun Quan was very serious and taught these people how to use the abacus in detail.

"That's how it works, it's much more convenient!"

"This is an addition. When five are full, another space is added. Two spaces represent ten, and ten will be added to one position. It is indeed very clear."

For the abacus, these people are also quick to get started, but it is easy to make mistakes. When calculating the abacus in the middle, they obviously cannot match the numbers.

"You memorize an abacus formula!" Sun Quan did have such a formula in his memory, and he remembered it very clearly, so he immediately pulled it out.

"The formula for addition is, add straight, add five, add ten, break five and add ten, go up one by one, go down five, go to four, go to nine and add one..." "As for the formula for subtraction, subtraction without abdication , the reduction of the abdication, the reduction of five reductions, the reduction of the abdication, the reduction of ten and five, one by one, one by one, four to five, one by one, nine..."

Sun Quan recited it three or four times, and these accountants recorded it one by one, and then began to practice using the abacus while reciting, feeling more and more relaxed.

"Zhongmou, your weight must definitely make our future accounts easier and clearer!" Cheng Pu sighed, "I must promote it."

"We'll talk about this matter later, let's settle the accounts first!" Around afternoon, these accountants became familiar with Arabic numerals and abacus. There is a big box in every county town.

"Now I will teach you the most convenient method of checking accounts. You twelve people, divided into three groups, the first group counts income, the second group counts expenses, and the third group subtracts income from expenses to get the final figure. "

Sun Quan gave them one of the simplest methods of auditing accounts that later generations promoted: "You only have two days. If you can't complete the auditing of these accounts within two days, you will disappoint me and make me have a kind of It feels like I'm teaching the wrong people the weights."

Today's Sun Quan, with a stern face, has an inexplicable majesty on his body, and everyone can feel the palpitations emanating from this young body.

"No!" The twelve accountants were full of confidence.

How Cheng Pu is in command of the entire Wu County, there are many things that cannot be separated from him, so naturally he will not keep an eye on it, so under the supervision of Sun Quan, the twelve accountants began to work hard to calculate, and the abacus was loudly clapped .

……

Thanks to everyone's efforts, it only took one and a half days for Sun Quan to complete the statistics of these accounts, and to get the final audit results, he walked into the lobby of the Sheriff's Mansion.

At this time, Cheng Pu, Gao Dai and Zhu Zhi were all there, and they should be discussing something important.

"Uncle, the results of the review are out!" Sun Quan held a book in his hand, which recorded the accounts of the four counties of Wu County, Lou County, Wuxi, and Piling.