Chapter 529: 2 Things Go Wrong and New Plan Emerges

"Lao Bi has learned how to write letters. Do you want me to be your pen pal?"

That night, Li Yi received a private message from Bi Gou, the Minister of the Ministry of Revenue, which did not represent the Ministry of Revenue.

The letter said two things.

"While crying about poverty and saying that I have no money, I also want to supplement my military salary. What I mean is that I don't want to make an IOU."

Li Yi understood, and Bi Gou went around and around, turning a kind of entanglement into words.

"Ask me if the newspaper pays taxes? Of course... you can't." Li Yi shook his head when he saw the second thing.

"Don't hand it over?" Li Chengqi helped bring the letter over. It was winter, and there were oysters and other seafood to be delivered.

"I can't hand it over. The newspaper belongs to the education and military sectors. It provides more money to the station and helps the people learn to read."

Li Yi refused and gave two reasons.

The newspaper was not his personal official, and it was the mouthpiece of the Tang Dynasty.

"At the same time, I also need more money to organize people to do the work. No matter how much newspaper advertising money is spent, it will take a long time to invest in the work to be done."

Li Yi has his own plan. He will use the money earned from the newspaper to do other things in the future.

Turning his head, he said to Li Chengqi: "Brother, before the Yellow River freezes, let's see if we can freeze a batch of fish and shrimp from Laizhou and send it to Chang'an."

"How to freeze it?" Li Chengqi knew that frozen fish and shrimp are more delicious than dried ones.

"It's just... no, the temperature is not low enough, and the water freezes slowly. When the water freezes, the Yellow River will almost be unable to move.

You can wait for the weather to get colder again, fish for fish and shrimp in the Bohai Bay, bring ice cubes frozen in winter, and use ice to keep them cold.

Back on land, prepare a mixture of ice and water, put the fish and shrimp in it, and freeze it hard overnight.

Put them into sacks and transport them by land. It was cold at that time, the temperature was low, and the ice cubes were still ice cubes when they arrived in Chang'an. "

Li Yi rejected the time-consuming method of grabbing water transportation on the Yellow River and changed it to land transportation.

The cost is high, and there are many rich people in Chang'an.

"Try it for my brother." Li Chengqi was tempted, mainly because he wanted to eat it.

Then he pointed to the letter written by Bi Gou: "Compensate for your military resources..."

"In the future, when taxes are collected, there will be what Zhuangzi should call "Zhuyong Tiao", which will be deducted from it. When the deduction is finished, when will it be paid again."

Li Yi was familiar with this kind of thing. Both parties had face, and the court took advantage.

Military funds are provided now, and there will be usury money when lending out, which is a lot every day.

Li Yi didn't plan to ask for the money. He wanted prisoners. Fifty thousand dollars for each prisoner would be considered a profit in itself.

As for giant pandas, it is currently a personal hobby.

"That's fine, Brother Yi can write a reply." Li Chengqi also believed that the Ministry of Revenue had taken advantage.

Li Yi quickly wrote a reply, telling Bi Gou that he would not pay advertising tax, and explained how to operate military funds, and gave it to Li Chengqi.

"Brother, do you know how to abacus?" After finishing this matter, Li Yi suddenly asked.

"You know a little, but you don't learn well." Li Chengqi was a little shy. It was obvious that he knew a little but it was true.

"I have been free lately, so I did some searching. I found a set of formulas that can make it easier for people to use abacus instead of learning questions."

Li Yi smiled, stood up and took out an abacus from the box next to him.

There are two beads on the top and five beads on the bottom.

"Actually, calculating the relationship between jin and liang does not necessarily require the above two beads, one bead, using different calculation methods, multiplying and dividing sixteen is enough.

However, addition and subtraction are easier to learn, so there are two beads on the top, one representing five, and the five beads on the bottom are also five.

In this way, it is faster to calculate the weight by adding and subtracting. You don't have to learn more difficult things, as long as the accountant can do it. "

Li Yi first introduced the use of beads. The two beads above are for beginners, and at the same time they are for larger counting calculations. The more beads you have, the more you can carry.

After speaking, he took out a few pieces of paper with tables drawn on them, including decimal addition, subtraction, multiplication, division, and hexadecimal.

Eleven in hexadecimal is eleven, twelve is twelve...

"I plan to print this out, and print it separately. One issue will be placed in the newspaper, and the rest need to be spread throughout the Tang Dynasty."

Li Yi put the form paper in front of Li Chengqi.

He once again performed the addition, subtraction, multiplication and division of two bases with his own hands. It was very simple, but his speed was slow.

He is not proficient either. He has never learned abacus and mental arithmetic. He learned abacus in primary school but later did not use it and forgot about it.

Suddenly I thought about it, checked the information, and thought about it myself before I could demonstrate it to others.

"You also teach this kind of secret method?" Li Chengqi understood it. It was indeed not difficult. Of course, Li Yi calculated only decimals and integers.

Nowadays, those who play abacus in the Tang Dynasty have their own methods, which are easily passed on to others.

At the same time, a deeper foundation in arithmetic is also required. There are questions one after another, and you should practice according to the solutions in the questions.

Now I have drawn a table on a few pieces of paper, and I can understand it just by looking at it. If I practice more, I can basically do everything.

"There is another thing that benefits the people. How many kilograms is equal to one tael? I am writing now, this is 1 to 625, and one tael is equal to 0.0625 kilograms.

This reduction is calculated by only one digit reduction, otherwise it would be 0.625 kilograms.

Two liang is equal to 0.125 kilograms, so he doesn't have to give up one place.

Three ounces are left at 1875, and 30 ounces are left at the position of the abacus, which is equal to 0.1875 kilograms.

In fact, after I have learned the mathematics taught in Zhuangzi, I don’t need it at all. I can calculate it with a pen and do mental arithmetic without any problem. "

Li Yi explained the formula and content of the two pairs of jins on the abacus. He felt that his own mental arithmetic was enough for ordinary daily life.

However, calculating the compound interest of donkey rolling interest and compounding interest is difficult to do mental arithmetic and written calculation, unless you can do abacus and mental arithmetic.

Abacus mental arithmetic itself is to simulate an abacus in the mind, just like playing chess blindly without looking at the board.

Anyone who knows how to play chess can usually simulate it in their mind when the game is opened and there are not many moves.

The simplest explanation of compound interest is that for stocks, the daily limit is 10%, which is 10,000 yuan. Multiplied by one point and one, it is 11,000 yuan.

The next day is 11,000 yuan multiplied by 1.1, which is 12,100 yuan. On the third day, continue to multiply by 1.1...

This thing is too laborious to calculate with a pen. My wrist hurts after counting a hundred days.

Li Yi thought, moved the abacus back and forth, and used his hand to draw the beads on it and return it to its position.

"Brother Yi, rewrite it and give this abacus and method to Brother Wei. Brother Wei can practice it at night."

Li Chengqi saw Li Yi's actions and thought he was handsome.

He plans to learn it first, and then...

The next morning, Li Chengqi's eyes were a little swollen. UU Readingｗww.uukanshu.net didn't have time to apply them with a hot towel, so he hurriedly finished breakfast and ran away.

He first arranged the transportation issues before the Yellow River froze in winter, and then sent people to Laizhou to try to transport fish and shrimps back in ice when the weather got cold.

The Khitan side of the Bohai Bay has thin ice in winter.

After handling it, he went to the imperial city to find Bi Gou, who had a letter with him.

When Bi Gou saw Li Chengqi, his eyes were on the abacus tucked under his arm.

"Bi Shangshu, the matter is settled, I will give you a reply." Li Chengqi handed the letter to Bi Gou first.

Bi Gou unfolded it and took a look. He breathed a sigh of relief. It was a good idea. It will be deducted from the tax gradually in the future.

After reading the letter, he looked at Li Chengqi, "Prince Song, why don't you leave?" Want to reply?

"Bi Shangshu, can you do abacus?" 'Wow, wow! ’ Li Chengqi shook the abacus, placed it on the table in front of Bi Gou, and returned it to its place.

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