"First of all, since we are talking about money, let's start simple......"

Douglas didn't linger long, looked around the spacious auditorium, and continued.

"There is only one system of currency in the wizarding world, and although they may be called slightly different from country to country, the face value and exchange rate are completely the same. And in England we are used to calling them gold galleons, silver sicos, bronze nats – well, you can now touch the underside of your chair......"

Glancing at the people who were bending down and groping in unison, a hint of cunning flashed in Douglas's eyes, and he said quickly.

"Of course, there's nothing down there. But don't worry, when this presentation is over, everyone will receive a money bag with Hogwarts advances in the form of magical currency. Now you just need to familiarize yourself with and memorize the exchange rules a little, 29 copper nat is equivalent to 1 silver sikor, 17 silver nat can be converted to 1 gold galleon, that is to say, 493 copper nat is equivalent to 1 gold galleon, isn't it quite simple and easy to remember?"

After the middle-aged goblin's barrage of introductions, there was an extremely rare silence.

Some of the people had a strange look on their faces as if they were constipated, as if they wanted to complain about something, but they didn't know where to start, while on the other hand, a very small number of scholars were stunned at first, and then fell into deep thought.

"You guys, well, I mean, don't the wizarding world find this a bit ...... Hmm, isn't it convenient?"

In the left-hand seat of Vinogradov, a slightly younger middle-aged man raised an eyebrow.

"I mean, at least you can consider making the exchange of copper and silver coins consistent......"

These days, Jomochika has heard his teacher complain about the huge gap in the field of mathematics in the wizarding world, and if it weren't for Alexey's daughter, he would have almost become the one who started math for young children.

It was hard for him to imagine that a group of wizards who were not even skilled in the four arithmetic and equations would use such monetary rules.

"I'm sorry, I don't think there's anything wrong with that, it's been around for thousands of years. ”

Douglas bowed politely, grinned, and whispered.

"Even if it is to be adjusted in the future, then at most it can only be adjusted from Yinxike, because when this monetary system was first formulated, the wizarding world has already determined that as long as it is still copper, it must be 29. ”

"Why? Because of your mysterious magic?"

Jomchika shook his head in a smirk and asked unceremoniously.

Although he didn't know what deal the middle-aged goblin had made with the teacher, he also felt a sense of a less harmonious atmosphere just based on the brainless conversation just now and the minutiae of these days.

If it was something about magic, he really didn't understand it.

But if the other party took the initiative to open up the "secret combat realm" to the digital aspect, then Jomo Chika didn't think that he would be worse than these short elves, and the more they talked, the more information they could get about the wizarding world.

"It's not magic. Jomo. ”

However, before Douglas could speak, a mellow voice suddenly sounded in Jommochika's ear.

"Because...... Copper is 29 - 2-8-18-1, what a wonderful number. ”

Arkhipovna from the Landau Institute gently patted the shoulder of the "junior brother" and said in a complicated tone.

If Jommochika, a pure mathematician, was not so sensitive to the numbers and words in the goblin's mouth, then it would be too embarrassing for a researcher in both physics and chemistry to not be able to react to what the other person was saying after hearing the other person emphasize the numbers twice in a row, as well as the firm words in the sentence.

"You just said that this monetary system has been used in your magical world for nearly a thousand years?"

Arkhipovna turned her head and glanced deeply at the middle-aged goblin, "Then why is the silver west not 47, but 17 to 1 gold galleon, so that it should be more in line with the conversion rules between this set of currencies, right?"

"The first reason is that neither the gold nor the silver are gold or silver in the true sense of the word. Reason 2......"

The smile on the corner of Douglas's mouth gradually opened, and his slender fingers swiped lightly in front of him.

Immediately after, dozens of shiny coins collided with each other, jumping out of its pockets and staggering in front of everyone, and at the foremost happened to be a row of silver Sico.

"As this gentleman reminded us, it could be a little more convenient for subsequent calculations—"

......

"Let's say there's sixteen silver sicos here, and let's say you still have one silver sico in your hand......"

Meanwhile, Hogwarts Castle, in a mathematics classroom.

Alexei stood on the edge of the podium, looking at the red-haired boy in front of him with a kind expression, patiently guiding him. qq

"Then I'll give you the words together, then Mr. Weasley, you'll get ...... eventually"

"One, a gold Galleon?"

Ron Weasley hesitated, then replied with a shudder.

Well, that's a good answer, if you're more used to thinking that way. ”

Alexei looked around at the faces in the classroom and said slowly, thoughtfully.

"So I'm going to change the question a little bit, let's say there are only ten silver sike here, and you have seven silver sike in your hand, so if you put it all together...... Isn't it still a gold Galleon?"

Ron nodded nervously, a little more confident in his heart.

He might have been a little better if it was just a plain question and answer, but the most important thing was that all the words involved in numbers in all the above conversations were in French numerical expressions that they had just learned.

In fact, strictly speaking, they were only halfway through their first lesson.

Alexei even suspected that perhaps by the end of the semester, the little wizards in the class would be able to stumble through some basic daily communication in pure French, as well as some simple pure French reading.

However, compared to the surprise in Alexey's heart, Elena, who was the arranger of the course, was not much surprised.

Unlike Russian, which belongs to the Slavic language family, modern English belongs to the Germanic language family, but in the process of development, it has incorporated too many words and reading methods of the Romance language family of French, so it is not too difficult to learn.

Especially when this "foreign language class" is in the wizarding world, it is a little simpler.

You must know that the Romance language family originally evolved from "popular Latin", and most of the spells in the wizarding world today are either referenced "Latin" or referenced "Gufsak", which is naturally much easier for Elena and others who have been studying at Hogwarts for more than a year than those children in the non-wizarding world.

At the same time, not far from the podium, the conversation was almost final.

Alexei picked up a stack of "teaching props" provided by Elena and placed them in Ron's hands in turn.

"Very well, but now you actually have seventeen silver coins, not a gold coin, so if you put it in French, then your answer should be?"

"Ten plus seven (dix-sept) silver sico. Ron swallowed and subconsciously replied.

"Exactly, isn't that very simple? And so on, according to the actual situation in the wizarding world, if you want to express to someone that the price of a commodity is eighteen silver sicos, then you have more than one form of expression, right?"

Alexei nodded in satisfaction, turned to the blackboard behind him and began to write quickly.

"Ten plus eight (dix-huit) silver sico, or, one (un) gold galleon and one (un) silver sico. ”

After learning about the currency system in the wizarding world from Elena Kaslana and confirming her thoughts in class, Alexei decided to respect the advice of the "big lady" and change the way she teaches her a little.

After all, the main purpose of his class is to train mathematical ability and mathematical thinking, and it is not a real French class.

Therefore, if there is a more suitable way of "arithmetic expression" in the wizarding world, Alexei is naturally willing to take the initiative to try it, especially as he has begun to realize that most of today's languages and traditional expressions are starting to be less useful in some of the more numerically intensive aspects.

I have to admit that compared to children in the non-magical world, the speed of the young wizards' reaction time in numbers and their ability to learn and imitate new languages are really far beyond Alexey's expectations, which may be the so-called talent starting point.

On the other hand, there are some subtle differences between children from wizarding families and children from non-wizarding families.

It is true that children from wizarding families are much more confused than children from non-magical families when confronted with abstract numerical operations, but when it is linked to the currency of their daily lives, they show another talent that surprises him, an incomprehensible arithmetic sensitivity to some strange decimal calculations.

And this means that they may really have the potential to change the world as Elena said.

Before that, of course......

Alexei picked up the chalk and wrote quickly on the blackboard as he spoke.

"Now, let's use the pronunciations we just learned, corresponding to 0-9, as well as the characters α, β, γ, δ, ε, ζ, and η, and put them together to express them, so if it is 31 silver sike, then it corresponds to 1ε......"

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Chapter 2!Mommy!!Mommy!!