After the family had breakfast, Zhang Weiwei took a carriage to the wood carving shop and took the abacus into his hand. Zhang Wei couldn't help but sigh that the craftsmen of this era are really good.

The two custom abacuses are generally rectangular wooden frames, with strings of abacus beads in the middle. Each bead seems to be soaked in grease, but it feels like it is not greasy when touched, just like a plated artwork, the same is true for the frame and the thin rods inside.

The hole in the middle of the bead is large enough that there will be no friction with the thin rod. Try to fiddle for a few times without any awkward feeling. The connection between all frames is mortise and tenon structure without any metal parts.

There is a beam in the middle of the abacus, which divides the beads into two parts, upper and lower parts, occupying about three parts, two abacus beads, seven parts, and five abacus beads. This design is to take into account some hexadecimal algorithms, such as this era is sixteen taels per kilogram, otherwise four at the top will be enough.

The abacus beads are penetrated by thin rods, and each thin rod is called a "stand". What Zhang does not require are all eleven gears. The entire abacus looks like a handicraft. The two abacuses are exactly the same, and even the patterns are similar. The overall look is flawless.

I paid the remaining balance, and satisfactorily put the abacus back home, and went to the room to look for Shiqing. As soon as I entered the door, I saw Shiqing and Wenqing were in the room. The two sisters had just returned from the guest room and were still talking about some interesting stories about the world that Rosasha said.

"Madam! My aunt is here too!" Zhang Wei put the two abacus on the table and said, "Madam, come quickly! This is the abacus I mentioned with you that day. It can replace the calculation and it is more convenient."

"Husband!" "Brother-in-law!"

The two sisters greeted each other, Shiqing looked at the abacus on the table and frowned, saying, "Husband, how do you use this?"

Zhang Wei smiled and said, "Look at me, Madam!" As he said that, he wrote the formula on the paper, and taught her basic fingering. Then he started to demonstrate with a rumor: "Madam, look, each bead above represents five, and each bead below represents one, and each bead below corresponds to tens of millions from right to left. Look, this is two, this is thirty-two, this is one hundred and thirty-two..."

Zhang Wei said while operating, and explained in detail to Shi Qing. Shi Qing often handles projects on weekdays and is very sensitive to numbers. After listening to it, he said happily: "Husband! You are so amazing. If you use this abacus skillfully, it will definitely be much more convenient and faster than calculating the foundation!"

Zhang Weixin said: It is said that the formula data of the atomic bomb after the founding of the People's Republic of China are all calculated using abacus, so it is not easy to use it to settle the accounts?

Shi Qing learned very quickly. After Zhang Wei demonstrated it, he had already started to be a bit awkward to calculate using abacus. He even learned from the examples that the extra beads were used to calculate the hexadecimal calculations.

Zhang Wei saw Shi Qing mastering it so quickly, and smiled with relief and said, "This evolved based on the calculation foundation, so you will definitely be able to use it easily!"

Since the second ambush of the thief, Shi Qing has begun to rely more and more on him. This is a good sign, especially after the second time, Shi Qing has not neglected him for the next day as before. At this time, looking at Shi Qing's admiring eyes, she felt that she was getting closer and closer to sleeping in bed, and quietly praised her wit in her heart.

"Madam, your fingering method is a bit wrong, you need to do this~!" The two of them were paying attention to abacus at this time, and they only had each other in their eyes. Zhang Wei stretched out his hand and wanted to catch Shi Qing's hand and teach him step by step, but he didn't find that Wen Qing was slightly disappointed. She didn't know anything about calculation, but she could only calculate some daily things. It involved accounting issues, which were much worse than Shi Qing.

Wen Qing looked at her sister and brother-in-law with some envy, and her heart was a little sad. Her sister ignored her and showed a sweet smile. She listened carefully. In fact, her eyes were always on the two of them. Seeing Zhang Wei reaching out and touching Shi Qing's little hand immediately, she felt a little uncomfortable, so she said weakly: "Brother-in-law! You are so powerful, even I have learned it! Let me try it too, okay?"

After saying that, he picked up another abacus and was eager to try it. The subtle atmosphere between Zhang Wei and Shi Qing was immediately broken. Zhang Wei was about to touch Shi Qing's hand and retracted without a trace. Shi Qing seemed to notice that her face was blushing and hurriedly said: "Sister, you have never been exposed to the accounts. When I learn to teach you, I can help the housekeeper when you get married!"

Wen Qing blinked her innocent big eyes and said, "But sister, I think I understand what my brother-in-law said. Can you please let me try it?"

Although Shiqing didn't understand why Wenqing, who didn't like to calculate, suddenly became interested in abacus, her instinct still made her refuse: "You don't have the foundation for calculation, and I will teach you slowly after I learn it!"

Wen Qing said weakly: "But sister, you haven't learned for a while?"

Shi Qing restrained her excitement just now and said proudly: "I have learned it!"

Wen Qing still had to speak. Zhang Wei was afraid that the two sisters would quarrel, so he kept things up and said self-righteously: "It's okay! You two have a companion to study together. Come on, I'll talk about the addition and subtraction of abacus again."

Shi Qing glanced at him and said proudly: "I'll teach Wenqing, just watch it!"

Zhang Wei was a little embarrassed by Shi Qing's eyes. He felt that he had said the wrong thing. He scratched his head with a wry smile, but Wen Qing seemed to have nothing happened, and she happily learned from her sister.

Shi Qing taught Wen Qing step by step. Looking at the deep sisterly love, Zhang Wei felt that he was a little unnecessary. After looking at the side for a while, he felt that he could not get in. Then he sighed softly and said, "You two will study it first. The mantra is here too. I'll go out, well... I'll take a look at it. I haven't been there these days, so I'm a little worried."

Shi Qing didn't raise her head, Wen Qing smiled at him and said softly: "Then brother-in-law, go quickly, my sister and I will learn it. Write it down if we don't know what to do and ask my sister to ask you again in the evening."

Although Shiqing didn't look up, she heard Wenqing say that she would ask again at night but her face turned red, but she still didn't look at him. Zhang Wei was used to it. It seemed that it was repeated again. Let's continue to sleep on the floor.

I felt the atmosphere was a little subtle, so I followed the conversation and continued: "Then I will go over and take a look. When I come back, you will ask me if you have any unknown things." After that, I turned around and left without waiting for the two of them to reply.

When he went out, Shi Qing looked up and Wen Qing teased, "Why sister? You don't want to leave him and you ignore him!"

Shi Qing immediately raised her chin and said proudly: "I'm looking at whether the door is closed!"

-------------------------------------

Wood carving craftsman craftsmanship exhibition,

The abacus is as exquisite as cultural relics,

Mrs. Xianbao is excited,

The sisters are so embarrassed.
Chapter completed!