Datang New Giants

Chapter 45 Turning corruption into magic
Soon a servant brought a plate of yellow copper coins.

Lu Ting got a few branches on the spot, and asked Hong Ling to bring a ball of thread, and tied the branches with the thread.

What is this for?Zheng Yanzhi and Hong Ling saw that they were at a loss. Didn't they want to improve their ability to calculate clearly, but also improve their accuracy? They didn't use pens, paper, or any calculation skills. It would be good to practice a few questions. Help thread help a few branches, is this a game for snot-nosed kids?
"What is your son doing?" Hong Ling asked Fu Zhi beside him in a low voice.

Fu Zhizhang was puzzled, shook his head and said, "I don't know, this is the first time I've seen you doing this."

Not only was he unable to see clearly this time, Fuzhi found that now he was becoming less and less able to see his son clearly. He was usually inconspicuous, but suddenly he had a lot of thoughts or creativity.

Hong Ling wanted to ask her own lady, but before she could speak, Zheng Yanzhi gave her a gesture to silence her. In fact, Zheng Yanzhi couldn't understand it, but seeing Lu Ting's serious face, she didn't seem to be playing, so she decided to wait patiently to see what he wanted. what to do.

Among other things, there are too many examples of Lu Ting turning decay into magic in terms of clear calculation, so I need to give him some confidence.

Under the suspicious eyes of everyone, Lu Ting first tied a shelf about one foot three inches long and half a foot wide with branches, with a small branch horizontally in the middle, and then put the chopsticks on the table with copper coins. Zheng Yanzhi could see clearly, every time There are only seven copper coins on the chopsticks, no more, no less, and then the chopsticks with copper coins are tied to the shelf at certain intervals, which is indescribably weird.

It's not like pretending to be a ghost. Judging by the way Lu Ting does it, it seems a bit random, but he can be more precise. It seems that there are rules to follow, but it's weird no matter how you look at it.

Tie the last chopstick tightly, Lu Ting did not idle, and used a small paring knife to carve the words "one, ten, hundred, thousand, ten thousand, one hundred thousand, million, ten million, ten thousand" and the engraving was completed. After writing, I can finally breathe a sigh of relief, the simple version of the abacus is ready.

During the assessment on the second floor of Kelaiju, Lu Ting was surprised to find that there is no abacus yet. The method of calculation is lottery and bead chips, which is very inconvenient. I wanted to get it out, but I haven't done it. Xiaoqiao is so generous this time , said to thank her to help her improve her computing power, just to get it out.

"Miss Xiaozhi, do you see anything special about this thing?" Lu Ting didn't reveal the cup immediately, and wanted to test Xiaoqiao's maidservant.

"This is the first time I see this kind of thing." Zheng Yanzhi hesitated, and said with some hesitation: "If my guess is correct, this is a tool for assisting calculations. It is somewhat similar to a pearl chip, but it seems to be very different from a pearl chip." , the slave family can’t figure it out for a while.”

Lu Ting clapped his hands and said: "Miss Xiaozhi is really talented and smart. You can tell it at a glance. That's right. This is an auxiliary tool for calculation. It has the same function as beads and lottery chips. They help calculate the results. It’s the same, but the efficiency is much higher than bead chips or lottery chips.”

Zheng Yanzhi blushed a little when she heard the phrase "talent and cleverness". She didn't understand it just now, but when she saw Lu Ting's engraving, she faintly felt that it had something to do with Ming Suan. She was a little embarrassed to accept this compliment.

"The efficiency is much higher than bead lottery and lottery tickets? Please, Mr. Lu, explain a thing or two." Zheng Yanzhi said expectantly.

It's hard to say about other aspects, but Zheng Yanzhi still has confidence in him when it comes to clear calculations.

Lu Ting nodded, and explained: "Miss Xiaozhi, look, each column is now replaced by chopsticks, representing a numerical value, each with only one digit, you understand ten, hundred, thousand, etc. It shouldn't be difficult to understand."

"My family can understand, but why is there only seven copper coins for each pillar? There are two upper and lower parts, but five for the lower part?" Zheng Yanzhi said with some doubts.

Tomorrow, every ten coins is one, so ten copper coins should be suitable, but this special auxiliary tool made by Lu Ting only has seven coins, which seems a bit unreasonable.

Lu Ting clapped his hands and said, "That's a good question. It's divided into upper and lower parts. In fact, it's for easy distinction. The upper two copper coins each represent five, and the lower copper coins each represent one. Miss Zhi, how about you?" Think about it, if you count too many, you have to count one by one, which is a bit laborious, but this method is much easier."

"According to the young master, the upper part represents ten, the lower part represents five, adding up to fifteen, why not just set one for the upper part and five for the lower part, wouldn't it be more clear at a glance?"

"No matter what, you have to make some preparations. The reason for preparing two is to prevent some special situations. For example, it is said that every tenth is one, but some numbers are not every tenth. For example, in some places, one There are 16 taels for a catty, if this happens, fifteen taels can’t be counted, just add one, of course, if there are two taels on it, I personally think it’s also pretty.”

It turned out to be the case, Zheng Yanzhi nodded sincerely, and said eagerly: "Young Master Lu just said that it is faster than those with beads, I wonder if you can demonstrate it?"

It's useless to say it well, you have to test it to know.

Lu Ting sat down, adjusted the copper coins used as beads on the simple abacus, and said: "Now I will count the process from one to one hundred, and Miss Xiaozhi is optimistic."

"I will wait and see." Zheng Yanzhi's gentle voice sounded behind Lu Ting.

Seeing that Lu Ting was about to demonstrate, she didn't even need to call, Zheng Yanzhi took the initiative to walk behind Lu Ting, with her eyes wide open, for fear that she would miss any of Lu Ting's movements.

Lu Ting moved up a copper coin from the bottom of the column marked with the number, and said: "The unit column, the lower part, each copper coin represents one, and this is one."

Digged two copper coins from below, and said patiently: "This is two, Miss Xiaozhi is optimistic, there are three copper coins on it, the result of one plus two is three, here is equivalent to one plus two, see, When it is added to three, the above copper coins will be used."

Lu Ting moved a copper coin from the top, said "three times five divides two", and transferred the lower copper coin back to two.

Seeing Zheng Yanzhi watching quietly, Lu Ting knew that it was not difficult to understand with her IQ, so he stopped explaining, while reciting the abacus formula, he calculated as fast as possible.

Zheng Yanzhi was dumbfounded all of a sudden, a few branches, a pair of chopsticks, a ball of thread and dozens of copper coins, these can be said to be too ordinary things, in the hands of Lu Ting, they turned decay into magic, and Lu Ting's Flying her hands up and down, light and graceful, like a butterfly dancing among flowers, Zheng Yanzhi was stunned for a moment.

Looking back at Lu Ting's transfer of copper coins, Zheng Yanzhi was surprised to find that Lu Ting had already added up to 39 in just a moment of trance.

Simply fast.

After just looking at it for a while, Zheng Yanzhi discovered the benefits of this auxiliary tool: no matter bead chips or bead chips, they need to be divided into chips of different values. For some time, you don’t need auxiliary tools, you can just move the copper coins directly. No matter where you count, you just need to look at the copper coins on it to know what the result is. This again takes time.

What surprised Zheng Yanzhi was that Lu Ting seemed to have quick calculation formulas, such as "one up two, two up two, three down five go two, four down five go one, two go eight into one" and so on. Court is still a little rusty, but his speed has obviously accelerated, and he can keep up with the rhythm even if he is not paying attention.

Suddenly, Zheng Yanzhi's eyes widened again. Lu Ting, who was counting, saw that he was holding the auxiliary tool with his right hand, picked up a bamboo stick with his left hand, picked a piece of candied fruit and threw it into his mouth. Heart to eat?When eating, the speed did not slow down significantly.

This is too great.

"One hundred, one to nine, one to one, work together, call it a day." Lu Ting finished counting the last number, let go of his hand, looked at the copper coins representing 5050 on the simple abacus, and nodded with satisfaction.

It’s been a long time since I’ve practiced this, and it’s been a long time. Fortunately, the basics are still there. The only thing I’m not happy about is that this simple abacus is too crude. Besides, I like to listen to the sound of "popping" beads the most. It is very exciting when I hit it fast, and the fun is obviously less with copper coins.

　Many book lovers are anxious about the protagonist's delay in leaving for Chang'an, and some book friends are dissatisfied with the title and arrangement of the characters. It is necessary to explain here:
　　1. When the protagonist goes to Chang'an, he needs funds and needs to make some preparations. Zheng Yanzhi is an important person. She will drive the people behind the Zheng family in Xingyang. Zheng Yuanxuan and Zheng Shanguo, the influential figures in the early Tang Dynasty, will soon surface. With the appearance of these characters , the protagonist can better embrace the golden thigh, otherwise it is difficult to win the trust of Li Er with only one piece of news, whether it is true or not, and whether it is a trap. If you just tell Li Er directly like this, it will be difficult to gain trust or reuse, Fantasy said With one sentence, he became Li Er's confidant, and his halo became heavier.

　　Another point, the gentleman takes revenge, ten years is too long, the main achievement is to come back and teach the villain, it is too late, before going to Chang'an, you have to clean up the villain, so that you can go on the road comfortably, please be patient, you will go to Chang'an soon .

　　2. Some book friends are struggling with addressing issues. You must know that the Tang Dynasty was a very tolerant era. People did not kneel when they met officials, and courtiers did not kneel when they met the emperor. , Mommy, mother, mother, old mother, old mother, mother, forehead mother, empress, mother, grandma, adult, kindness, family and sister, etc., are more complicated in ancient times. For the convenience of reading, Xiaopao is also called After making some changes, there will be no entanglement with the young master and the young master.

　　3. This book focuses on a relaxed line, not a serious official text.

　　
　
(End of this chapter)