After all, it is a household book, and there are countless money to pass through Zhuang Chengyi's hands every day, Zhuang Chengyi is sensitive to numbers, and it is estimated that only Zhao Huan, a crossing hanger, can compete with him in the entire Great Song Dynasty.

So as soon as he saw the 0123456789 numbers written down by He Ji, as well as the addition and subtraction method demonstrated by He Ji, Zhuang Chengyi keenly discovered the simplicity of this number and calculation method.

But there is an old saying, it is called green plums are invincible from the sky. There is also a saying that the liver is defeated by krypton. Anyway, the general meaning is that no matter how awesome you are, you can't play those traversers with destiny, and no matter how awesome the traversers are, you can't play the children of destiny who can summon meteor fire showers.

Zhao Huan? Zhao Huan is even more awesome - the traverser with the mandate of heaven is also the son of heaven, and the son of God.

Therefore, no matter how sensitive Zhuang Chengyi is to numbers, he is definitely not as knowledgeable about numbers as Zhao Huan, who has received nine years of compulsory teaching.

"Tilt this + sign a little bit to make it a multiplier sign, such as four times five, which is forty-five. It is written as 4x5=20. Add a little above and below this minus sign to make a dividing sign, and 205 is equal to 4. This =? This is the meaning of equal. ”

After discovering that there was no multiplication and division and equal sign, Zhao Huan immediately preemptively registered the invention rights of these three symbols: "The two symbols I just came up with, plus the plus sign and the minus sign, these five symbols are the Jingkang operator." Also, this number will be the number of the Great Song Dynasty in the future, if the barbarians or poisonous people in the city have opinions, then let them come to me, and I will give them an explanation. ”

"The official family is sage."

Not lightly and heavily, Zhuang Chengyi said in his heart, the barbarians have to think about it a lot before they come to your old man to explain? It is estimated that if a barbarian comes, then the fate of this barbarian will either be chopped up and fed to the dogs, or the country will be destroyed.

After complaining in his heart, Zhuang Chengyi picked up the pen again, began to write down these symbols on the paper number, and repeatedly wrote several addition, subtraction, multiplication and division equations.

Zhao Huan didn't care either, anyway, so many people didn't object to the Great Song Dynasty number and the Jingkang arithmetic, then there would be no problem - I have now invented the Jingkang arithmetic again, and it is not in vain to cross this time.

"I don't think it's very convenient to write one, two, three, four, so I'll simply use 1234567890 instead. Like the zero one zero one I just said, isn't it 010101 to write this kind of number, but it's also simple. ”

Zhao Huan continued: "It's just that this brush is not easy to write, but it is not as good as some other pens to write." ”

Zhuang Chengyi wrote a few numbers on the paper, and felt that it was indeed inconvenient as the official said, so he bowed down and said: "The minister thinks that the reason why the brush is not easy is because the tip of the pen is too soft, but you can try it with something like charcoal." ”

Zhao Huan snorted and said, "Let the Ministry of Industry look at this back." Now let's talk about the station.

I just gave an example of the Daqing Palace, and it's the same if I change it to other places. For example, the number of Shuntianfu is 02, and the number of Luanzhou under the jurisdiction of Shuntianfu is 09, so the sum is 0209? That is, 020901 to 020999. ”

Zhuang Chengyi said in his heart, you are an official, you are happy. But most of this coding thing still has to fall on the household? It is possible to take the opportunity to implement this big Song number and Jingkang arithmetic in the household department first.

After making up your mind? Zhuang Chengyi bowed down and said: "Qi Guan family, the minister intends to promote the Great Song Dynasty number and Jingkang arithmetic in the household department first?" Please ask for the permission of the government. ”

Zhao Huan snorted and said, "Accurate." ”

Just after that? Zhao Huan picked up the pen again? First, I wrote a 1 on the paper, and then added a stroke, and the result was that the 1 became 4. Write another 1 and add another stroke, and the 1 becomes 7. And don't wait for Zhuang Chengyi to react? Zhao Huan wrote a "one" on the paper again? First he added a stroke to become "two", and then added another stroke, and as a result, this "one" became "three".

Zhao Huan put down his pen and said to Zhuang Chengyi with a smile: "How?" ”

Obviously, Zhuang Chengyi was completely frightened by Zhao Huan's drastic change in numbers. Just after coming to your senses? Zhuang Chengyi's heart couldn't stop secretly rejoicing-

This kind of lack of morality and smoke is the first thing the official family came up with!

It is foreseeable that if the game of the Great Song Numbers and Jingkang symbols is fully pushed out in the household? This bookkeeping has become simpler, but what tricks are really played by the people below? That's a lot of fun!

And it's almost a sure thing! When it comes to getting down to business, these officials and men of the Great Song Dynasty may not be the same? But when it comes to putting money in your pocket? That's a top player? Even the Four Pillars Inventory Law couldn't stop them!

Just when Zhuang Chengyi was thinking about how to solve this problem, Zhao Huan picked up a pen and wrote the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100, 1000, 10000, and then wrote the words zero, one, two, three, four, Wu, Lu, Qi, 捌, Jiu, pick, Bai, Qian, and Wan under these numbers.

"Solved."

Zhao Huan threw down the pen and said with a smile: "When you count the numbers, you use the Song numbers, and when you keep accounts, you don't only use the Song numbers, but you also have to add these Chinese characters, and then you want to do it, but it's not so easy, right?" ”

This time, Zhuang Chengyi bowed to Zhao Huan with a sincere heart and bowed, and said, "The official family is sage!" ”

Zhao Huan's face was not red and his heart was not beating, and he pulled the topic back to the post station.

"With this number that can be specific to the village, if I want to send something from Bianjing to Luanzhou border city, I only need to prepare the package, fill in the 020901 number, and the post station will know where the package should be sent from."

"In the same way, if Luanzhou Border City wants to send it back, it naturally only needs to fill in the 010101 number, and the letter or package can be sent directly to Daqing Palace."

"It's easy for people to send letters, parcels, and so on. Naturally, the speed of material transfer will also be accelerated. ”

"Isn't the Privy Council having a headache this time, how to settle the forbidden army and the box army?"

"The military department can recruit a part, which can not only share part of the pressure on the Privy Council, but also speed up the construction of the post station system."

"If there is still not enough manpower, you can also consider recruiting some from the private sector, as long as you can afford the wages."

“……”

The benefits of being an emperor are great. For example, now, Zhao Huan just moved his mouth, Zhuang Chengyi, the household leader, and Li Wende, the military department, had to break their legs, and by the way, they had to pick up their hair.

But being an emperor is not without its pitfalls. The biggest disadvantage is that there are too many bad things to make people feel bad in this era of comparing each other, and there is no one to replace them.