"This thing is called abacus!"

Ye Xuan gently tweaked his fingers, and the wooden beads hit the frame along the wooden string, making a "click" sound, and then a series of formulas that looked like children's songs were spoken smoothly from his mouth.

One goes up one, one goes up five goes down four, one goes up nine goes up one.

Two to two, two to five to three, two to eight to one.

Three on three...

The strange object called Abacus also echoed like a musical instrument in Ye Xuan's voice, which immediately attracted the attention of the twenty-three teachers.

They have some basic knowledge in arithmetic and soon saw some rules.

"What a convenient calculation tool, the more you look at it, the more magic it becomes!"

"Isn't this also invented by Lord Lord?"

"In my opinion, nine out of ten, have you ever seen such a thing?"

"Just like the Black Water Number, it's the first time I've seen it."

“I feel it’s not just for teaching…”

Just as these teachers were amazed, Ye Xuan's mind also heard the prompts of faith values ​​getting. Although it was just some decimal values, it was also a good start.

After a little demonstration of the usage of the abacus, Ye Xuan stopped fiddling and gently pushed the abacus to the teacher closest to him.

"There are formulas for using abacus in the mathematics textbooks. You can verify whether it is correct. Don't worry, Hei Shui City is ready for teaching tools."

It is said to be a proof, but in fact I want these teachers to experience it myself.

As soon as Ye Xuan finished speaking, someone immediately sent abacuses.

These people had long been itchy by the magic of abacus and didn't need to greet them. They immediately opened the mathematics textbooks and began to fiddle with the abacus according to the above formula.

For a moment, the crackling sound of abacus echoed throughout the room, like a strange music.

"Hei Shui Academy will officially accept students in half a month. I hope that by then, all the teachers will be ready. The Lord will send specialists to stay in Hei Shui Academy. Anyone who has any needs, whether in teaching or life, Hei Shui City will try to meet them."

Unfortunately, the twenty-three teachers were already immersed in the world of abacus, and no one responded to Ye Xuan's words at all. The scene was a little awkward for a moment.

However, Ye Xuan didn't mind. As long as these people could teach the next generation of Heishui City to the death, they didn't need to pay attention to these details at all.

Ye Xuan did not forget to literate the adults and officers, but these teachers were just new to the school after all, at least they would talk about it until the other party got used to it.

After repeatedly reminding other personnel of Heishui Academy, Ye Xuan left the place and was about to patrol around while he was in a mood, but unexpectedly, Fan Tong rushed to come up in a hurry.

"Master, did you invent this thing?" Fan Tong first looked around, took out something wrapped in cloth, opened it and found that it was a calculation.

"Yeah, that's right." Ye Xuan recognized at a glance that Fan Tong had taken the original version.

After all, I redeemed it from the faith value store, and the others were imitated by the craftsmen in Hei Shui City.

"The Lord is a great talent. Although this thing is just a teaching tool, it is more suitable for merchants to use according to the foolish opinions of the ministers."

Fan Tong was taking the Business Department to conduct a city inspection. After all, he hasn't come back for so long. There are many new things in Heishui City. Everything that has commercial value must be recorded.

I happened to see a group of craftsmen making abacus. When I was curious, I learned the reason and was shocked after I experienced it.

As a businessman, Fan Tong has a good sense of business and immediately discovered huge business opportunities from the abacus.

Then I found it immediately.

"Fan Tong, this city lord knows what you mean. Indeed, abacus is more suitable for businessmen, or even for any commercial behavior."

Ye Xuan first agreed with Fan Tong's statement, and then changed the subject, "But have you ever thought about how many people can use abacus now?"

"This..." Fan Tongyi was stunned when he heard this.

As the Lord said, I didn’t know what it was when I first saw the abacus, but then I experienced it according to the mantra before I could understand it.

"It's because the subordinates are too reckless."

"Actually, your idea is good, and this city lord also has plans for this, but it has to be discussed after the Hei Shui Academy is officially launched."

Ye Xuan gently rolled the original abacus and said with some slightest meaning: "Although outsiders don't know how to use it, we can teach them. Of course, this is also a science. How can you not pay if you want to learn it?"

"That's right, the master is right. How can you want to learn such a good knowledge without spending money? And we can also make a fortune on the abacus." Fan Tong's businessman's soul woke up suddenly and immediately outlined a series of sales methods.

"Now we only have wooden abacus. When more and more businessmen learn to use it, we can even create abacus for other materials to show the difference."

"Aren't you afraid that they are unwilling to pay for money to study?" Ye Xuan asked with a playful smile.

"Is the Lord testing me?"

Fan Tong said with his eyes shiny: "Everyone in the world has the intention of comparing, and businessmen are no exception. If we are trading with other merchants, we can directly calculate the accounts and calculate the accounts in one go, which will definitely attract the attention of other merchants."

"What businessmen are most afraid of is the word "not knowing". Even if they want to understand what we are doing, they will learn to use abacus. As long as the first foreign businessman learns it, our business will be done."

"But this money can only be earned for a while. As the director of the Business Department, you must grasp the freshness." Ye Xuan once again used the method of hand-off the boss and handed over the full power of this matter to Fan Tong.

"My subordinates know what to do, and they will never disappoint the Lord." Fan Tong patted his chest and made a promise.

Then he hesitated for a moment, pointed to the original abacus and said, "Lord, I heard that this abacus was made by you personally. Can you give it to your subordinates?"

"Okay, I'll give it to you." Ye Xuan looked at the original abacus worth 10 faith points, nodded very happily and agreed.

"Thank you, Lord, I will definitely treat you with precious things." Fan Tong said excitedly, and carefully wrapped the original abacus.

"Ding, congratulations to the host for obtaining 100 faith points from Fan Tong."

This time I made a profit of 90 faith points...

Ye Xuan looked at Fan Tong who was leaving in a hurry, holding an abacus as if he was holding a baby, and suddenly felt speechless.

Although the abacus business can only be done for a while, as long as it is operated properly, it is a considerable income. The treasury is full and more things can be done.

Next, Ye Xuan continued to patrol the city, received a wave of praise from the people, ate more and more street snacks, and returned to the city lord's mansion with satisfaction.

Ye Xuan had just returned to the mansion, but saw a person in the front yard walking back and forth, looking very impatient and restless, as if something important was happening.
Chapter completed!