Chapter 347: The Magical Use of Abacus
After Ying Zheng played with the abacus as a toy, he felt a little enlightened.
"Could this be a toy for children? Is it possible that one of them is pregnant?"
Li Si and others were immediately shocked. How much Your Majesty wanted Qin An to have a child.
"Village Chief. There is paper on the table. We might as well take a look. Maybe there is some introduction to the purpose of this thing?" Feng Quji said.
Ying Zheng put down his calculations. Picked up the three pieces of paper on the table.
"Abacus. So this thing is called abacus." Ying Zheng looked at the abacus on the table again, his eyes were completely different from before. "The abacus is a calculation tool that requires manual operation."
Ying Zheng took the abacus, looked at it and continued: "There is a crossbar in the abacus that separates the beads into upper and lower parts. Each bead in the upper half represents 5, and each bead in the lower half represents 1. Each bead on the string from the right To the left represents the decimal units, tens, hundreds, thousands, and ten thousand digits.”
Ying Zheng fiddled with it twice casually, and one of the lower half beads on the 10,000 digits was pushed up, one on the upper half of the 1,000 digits was pushed down, there were three beads on the lower half, and one on the 100 digits was pushed down. For the upper digits, one bead is pushed up from the lower half, but there is no tens digit. For single digits, one bead from the upper half is pushed down.
"Eighteen thousand one hundred and five." Ying Zheng looked at the abacus and directly reported a number.
Li Si and others were extremely excited.
Li Si said: "This abacus seems to be more useful than arithmetic chips and deserves to be vigorously promoted."
Feng Quji nodded and said, "Yes, as long as you figure out some rules of abacus, I'm afraid it will be more than just a little bit useful."
Ying Zheng said: "Old Feng is right, there are indeed formulas. Here are two sets of formula tables for addition and subtraction. Come and take a look."
Feng Quji and the others immediately walked behind Ying Zheng and took a look.
After Feng Quji took a look at it, he said, "Village chief, could you let me try this addition formula with an abacus?"
"Of course." Ying Zheng said, "But we must first understand the meaning of up, down, go, and enter in the formula."
"Village Chief, there is an introduction below the formula form." Li Si said.
Immediately everyone looked at the bottom of the form, and sure enough, there was an introduction.
Ying Zheng said: "In the addition formula, "up" means to move the beads to the beam, "down" means to move the beads to the beam, "go" means to move the beads to the side, and "in" means to move the beads to the side. Add the first digit.
In the subtraction formula, "up" means to move the lower bead to the beam, "down" means to move the lower bead away from the beam and to the side, "go" means to move the bead away from the beam to the side, and "in" means to add the bead to the front position. When counting, "return" means to subtract the number from the previous digit, and "return" means to add the number to the original digit after removing the previous digit.
The formulas for addition and subtraction have similarities and opposites. The formulas for subtraction have more "return" and "return".
It's really wonderful.
Lao Feng, try addition, Lao Li, try subtraction. Third child, go and look for it. There should be more of this abacus. There is absolutely no way there is only one.
There is absolutely no way I can only have such a good thing. "
"promise."
Feng Quji began to move the abacus according to the addition formula, first counting from the single digits and adding them up one by one.
After a while he had a thorough understanding of abacus, and the rest is just practice makes perfect.
Having already appreciated the superiority of the abacus, he stopped moving the abacus and handed it to Li Si.
"Lao Li, try subtraction."
"good."
Li Si took the abacus, fiddled with it a few times, gave a random number, and then subtracted it one by one.
He also did the same as Feng Quji. It didn't take long for him to already know the advantages of the abacus, so he stopped his fingers and said: "Village chief, this abacus is very good. Whether it is the treasury or private accounting, wherever numbers are related, You can use the abacus.
It can be used even in the army. It will be faster to use the abacus to calculate the supply of food and grass. "
"You are right," Ying Zheng said, "I just don't know what the purpose of Qin An's invention is."
"Father, there are many abacus in the room, at least a hundred. There are also many ledgers." Jiang Lu walked out of a room with several abacus and ledgers.
At this time, Qin An also walked out of the kitchen.
Qin An saw Jiang Lu walking out of the warehouse and heard Jiang Lu's words, so he walked over with a smile.
"Father-in-law, father-in-law, you came at the right time. I will explain the account books and abacus tonight." Qin An walked over with a smile.
Ying Zheng took the account book from General Lu and asked, "Why did you suddenly think of inventing the account book and abacus."
Qin An replied: "This is not what Manman told me. I have many industries in the village and they are too busy.
So in order to make it easier for them, I invented this abacus and account book. This will make it easier for them to calculate and manage accounts. "
"I have seen this abacus on the table. It is indeed good. The calculation method is very simple.
Is there any difference between this ledger and the current one? "
Qin An smiled and said: "Father-in-law, wouldn't you know it just by looking at it?"
Ying Zheng immediately opened the account book and was instantly attracted by the tables in the account book.
The form has dates, expenses, income, purposes, totals, and notes, making it clear at a glance.
"Yes, very good. Use this account book to keep accounts, and you can see your profits and losses at a glance. But this account book can only be used in shops, not in the village or the country." Ying Zheng said with great regret.
Qin An said: "This is just a model. I printed many models. Third uncle, please bring out all your account books and the abacus at the same time.
Let me show you what a ledger is. "
Jiang Lu nodded, then called several Black Dragon Guards to enter the warehouse and took out all the account books and abacus.
"Thank you, third uncle." Qin An said with a smile.
"You're welcome, hurry up and teach me how to use an abacus and a ledger. I have a lot of property now. Bookkeeping is actually my biggest headache.
Now that I have your abacus and account book, I seem to have seen a savior. "Jiang Lu said.
"No problem. I'll briefly tell you about the account books and abacus first. I'll talk about it in detail in the evening."
"good."
Qin An found a ledger in the pile of ledgers.
Then he walked up to the crowd and said, "This is the company's balance sheet. Take a look at it."
Ying Zheng and others began to circulate them one by one.
"Qin An." Li Si asked: "Liability sheet, why is there a debt sheet? Shouldn't the purpose of doing business be to make a profit? It should be a profit statement, right?"
"Because although the current companies are making profits, their total assets are negative." Ying Zheng replied with a smile.
Some people died, but not completely...
