Chapter 347: The Wonderful Use of the Abacus

After Ying Zheng played with the abacus as a toy, he had a slight realization in his heart.

"Isn't this a toy for children, is it possible that any of them are pregnant?"

Li Si and the others were taken aback, how much Your Majesty wanted Qin An to have a child.

"The village chief. There's paper on the table, so let's take a look at it, maybe there's a purpose for it? Feng Qujian said.

Ying Zheng put down the abacus in his hand. Picked up the three pieces of paper on the table.

"Abacus. It turns out that this thing is called an abacus. Ying Zheng looked at the abacus on the table again, and his eyes were completely different from just now. An abacus is a calculation tool that requires manual operation. ”

Ying Zheng took the abacus, looked at the abacus and continued: "This abacus has a beam that separates the beads into two parts, the upper half represents 5 for each abacus bead, and the lower half represents 1 for each abacus bead. From right to left, each bead represents the decimal digits, tens, hundreds, thousands, and tens of thousands. ”

Ying Zheng casually fiddled twice, one of the lower half of the abacus on the 10,000 was pushed, the upper half of the abacus on the thousand was pushed down one, the lower half of the ground abacus was three, the lower half of the hundred was pushed up by one, there were no ten digits, and the single digit was pushed down one of the upper half of the abacus.

"Eighteen thousand one hundred and five." Ying Zheng looked at the abacus and directly reported a number.

Li Si and the others were very excited.

Li Si said: "This abacus seems to be more useful than the abacus, and it is worth promoting. ”

Feng Qu shook his head and said: "That's right, as long as you figure out some rules of the abacus, I'm afraid it's more than a little bit useful." ”

Ying Zheng said: "Lao Feng is right, there is indeed a formula. There are two sets of formulas here, addition and subtraction. Come and see. ”

Feng Quji, the three of them immediately walked behind Ying Zheng and looked at it.

After Feng Qujian looked at it, he said, "Village Chief, can you let me use the abacus to try this addition formula." ”

"Absolutely." Ying Zheng said, "But we must first understand the meaning of the mantra, up, down, go, and enter." ”

"Village Chief, there is an introduction below the formula form." Lees said.

Immediately, everyone looked down at the table, and sure enough, there was an introduction.

Ying Zheng said: "In the addition formula, "up" refers to dialing the abacus beads against the beam, "down" refers to dialing the upper beads against the beam, "going" refers to dialing the abacus beads against the beam to the side, and "in" refers to adding the number in the front position.

In the subtraction formula, "up" refers to dialing the bead against the beam, "down" refers to dialing the bead from the beam to the side, "going" refers to dialing the abacus to the beam, leaving the beam to the side, "in" refers to adding the number in the front position, "retreating" refers to subtracting the number in the front position, and "also" refers to adding the number on the base position after the previous number is withdrawn.

The formulas of addition and subtraction have similarities and opposites, and the subtraction formulas have more "return" and "return".

It's wonderful.

Lao Feng, you try it with addition, and Lao Li try it with subtraction. Third, you go and find out, there should be still this abacus, and it is absolutely impossible to have only one.

It's impossible for me to have such a good thing. ”

"No."

Feng Quji began to move the abacus according to the addition formula, first adding it from the single digit one by one.

After a while, he already understood the abacus thoroughly, and the rest was practice makes perfect.

He had already appreciated the superiority of the abacus, so he no longer moved the abacus and handed it to Li Si.

"Lao Li, you try subtraction."

"Okay."

Li Si took the abacus, fiddled with it a few times at random, gave a random number, and then subtracted it one after another.

He also went to Feng to get sick, and it didn't take long for him to know the advantages of the abacus, so he stopped his finger and said, "Village chief, this abacus is very wonderful." Whether it is the national treasury or the private account office, wherever it has something to do with numbers, you can use the abacus.

Even in the army, it can be used, and it will be faster to calculate the supply of grain and grass with an abacus. ”

"You're right." Ying Zheng said, "I just don't know what the use of Qin An's invention of this abacus is." ”

"Father, there are many abacus in the room, at least a hundred. There are also quite a few ledgers. Jiang Lu walked out of a room with a few abacus and a few ledgers.

At this time, Qin An also walked out of the kitchen.

Qin An saw Jiang Lu walk out of the warehouse, and heard Jiang Lu's words, so he walked over with a smile.

"Father-in-law, father-in-law, you are here at the right time, and I will explain the account books and abacus tonight." Qin An walked over with a smile.

Ying Zheng took the ledger in Jiang Lu's hand and asked, "Why did you suddenly think of inventing the ledger and abacus?" ”

Qin An replied: "It's not Yan Yan They told me that I have a lot of industries in the village, and they can't keep busy."

So in order to make it easier for them, I invented this abacus and ledger, so that it would be easier for them to keep statistics and manage their accounts. ”

"I've seen this abacus on the table, it's really good, and 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, don't you know by looking at it?" ”

Ying Zhengxuan was about to open the ledger and was instantly attracted by the tables in the ledger.

The form has dates, expenses, income, purpose, totals, and remarks for a quick glance.

"Yes, very good, using this ledger for bookkeeping, you can see the profit and loss at a glance. But this ledger can only be used in shops, not in the village, in the country. Ying Zheng said very regretfully.

Qin An said: "It's just a pattern, I have printed a lot of patterns. Third uncle, all the account books of the two of you have been moved out, and the abacus has also been moved out.

I'm going to show you what a ledger is. ”

Jiang Lu nodded, and then beckoned a few black dragon guards into the treasury and took out all the ledgers and abacus.

"Thank you, third uncle." Qin An said with a smile.

"You're welcome, you quickly teach me how to use abacus and ledgers, I have a lot of industries now. Bookkeeping is actually my biggest headache.

Now that I have your abacus and ledger, it's as if I've seen a savior. Jiang Lu said.

"No problem, I'll briefly tell you about the account book and abacus first, and I'll talk about it in detail in the evening."

"Okay."

Qin An found an account book in the ledger pile.

Then he walked up to everyone and said, "This is the balance sheet of the enterprise, you can take a look." ”

Ying Zheng and others began to circulate.

"Qin An." Li Si asked: "Balance sheet, why is there a balance sheet, shouldn't business be done for profit?" It should be a profit sheet, right? ”

"Because although the current companies are profitable, their total assets are negative." Ying Zheng replied with a smile.

Some people died, but not completely......