After experiencing arguably the most satisfying feast of his life, Muradin did not get carried away to forget what he was here for. It's just that the experienced casting master is just about to start at this time, and he is already stumped by the problem in front of him.

Muradinmo rubbed the delicate red copper coins in his hands, and while he marveled at Andrarui's miraculous casting process, an old face with gray hair was squeezed together and completely stretched......

The coins in the hand are hard, wear-resistant, and delicate, and even the luster is so beautiful, and the composition belongs to the authoritative ratio that has been perfected by the limestone clan for thousands of years to the point that it is almost difficult to change...... Who is going to tell this old man what kind of silver alloy ratio he is going to use to match the twenty-two to one ratio of silver to gold of mankind, and to forcibly cast them into integer multiples prescribed by the Children of the Abyss...... Isn't this what a strong man does!!

Although Muradin had little knowledge of these chaotic ratios of precious metals, he used his own experience to find the difficulties of this coinage system that he could barely bypass—unlike the first edition of the copper ambi set by Andrei, the second edition of the silver coin needed to maintain the physical properties of the coin, such as the hardness of the coin, while keeping the value of the silver content in the coin in line with the future gold coin system.

The silver coin sandwiched in the middle is like a little daughter-in-law who is angry at two ends, and it is indeed a difficult thing to do...... Muradin, who almost didn't do anything, really had no choice but to turn to the children of the abyss who set these demanding standards.

As soon as he remembered that he had eaten a few glasses of wine last night, he promised that "no problem" with a large package, and the old face of the dwarf elder standing in front of Andre was almost red.

“...... This is indeed my previous negligence, but you must understand that I am also doing this so that the standards of the entire monetary system can be unified and standardized. So what is the exchange ratio of human silver to gold?"

"Twenty-two to one......

"And what about the proportion of silver and gold?"

"Gold is basically twice as much weight as silver of the same size. ”

"That is to say, the value ratio of gold to silver in the same volume is one to forty-four, so Elder Muradin, how many purity alloys do you think is appropriate for gold to be used for coinage?"

"The best is of course about ninety percent gold with a gold content, but the gold content of those human gold coins always changes......

"The gold content is about ninety percent gold, which means that the value ratio of finished gold coins to sterling silver is about one to thirty-nine .6...... In order to facilitate our future monetary system, we will directly add two percent of other alloys to silver, and this will be just one to fifty!" The idea of one to one hundred is just a "game" setting in an overhead background that does not need to consider the actual value of precious metals, and Andre is very satisfied with the fact that the ratio of gold and silver can be set at the integer of one to fifty. The exchange rate or something should be easy to convert to be convenient?

“...... That's how you figured it out!?" Muradin felt that he had listened to Andrei's words without a word in the process just now, and he had not heard anything wrong with the calculation of the son of the abyss...... But is this thing really that simple!?

"Your Highness, do you want to stop the calculations?" asked the dwarven elder, who was the master foundry, with a slight uneasiness.

"What, Elder Muradin, do you still want to be accurate to the decimal places...... There's no need to pull! Then a little bit of value error can be regarded as the added value of our coinage process! Thanks to the fact that I thought far ahead when I minted copper coins, I deliberately minted copper coins with face values of '5' and '10' to five times and ten times the weight of '1'...... Otherwise, in order to match the size and specifications of the 'Appi', the silver content of silver coins of different denominations has to be redetermined, which is simply troublesome!"

"......" responded to Andrei's complaints, and the confused Muradin, who said that he couldn't understand it. It's just that in the dark, there is a kind of appearance that I can't understand, but it seems to be very powerful......

"Why don't we design the pattern of the new silver coin first?" Solving a very important problem, Andrei was in a good mood. Anyway, there is nothing else, so it is better to give the matter of minting the silver coin as soon as possible.

The dwarven elder whose mind was trapped in the "labyrinth" still looked sad. Muradin's heart was full of contradictions, he felt that the series of numbers that Andrei had just dictated should be correct, but he was completely incomprehensible at his own level of arithmetic...... In the end, he made his suggestion to the children of the abyss with a face full of shame: "That...... Your Highness Andrew, how did you come to that one-to-fifty just now, can you please explain it to me again on a blank piece of paper?"

......

-- As a last resort, Andrei finally used the method of dealing with elementary school students. The "characters" of "gold" and "silver" were regarded as one of the components contained in the alloy, and they were drawn one by one on the paper for the dwarven elders like eggs. In the end, the dwarven elder who finally made Han Han smirk suddenly realize that the conclusion of the son of the abyss, "one to fifty", was not wrong or missing.

"But I still don't understand how Your Highness can calculate it in just a few words before an hourglass hour!"

With one hand on his forehead in a pensive state, André felt that he was on the verge of collapse, but as the leader of Andrari, he had to face this inescapable problem! If the people of the whole town were like the Dwarven Elders...... He was almost certain that the human merchants, who had long been accustomed to the complex monetary system, would be able to spin them all in minutes!

Thinking of the situation where his subordinates were sold by others and had to help count the money, the helpless Son of the Abyss immediately made a decision - since there was nothing to do tonight, it would be better to start another class......

......

What is mathematics? If you are a scholar whose mind is occupied by all kinds of calculus, spatial analytic geometry, and ordinary micro equations, he will probably tell you that mathematics is a language used to describe the universe...... Words that would allow Andrei to explain to an audience that is generally at the level of elementary school students-

"Mathematics is to calculate by remembering what you have in your head! Simply calculated! After you have memorized all the forty-five variations of '1+1=2', '1+2=3' and '9+9=18', you still need to use them frequently in your life! You will never forget them in your life, and make them an instinct in your mind......" The Son of the Abyss pointed to the makeshift teaching board full of numbers, and transmitted basic science to the listless students in the audience.

"And then we've learned it completely, Your Highness?" Barot thought that what André had taught today was very useful, but the seemingly simple, but in fact dazzling new "numbers" had almost tormented his brain...... If this was all the know-how of His Highness's quick calculations, the young dwarf felt that he could not grit his teeth and could not force himself to memorize them all!

Elder Muradin's arithmetic ability of the Children of the Abyss has been admired beyond measure!

"You're naïve, boy! If you understand these forty-five variations, you'll be eligible for training in the techniques of adding and subtracting multi-digit numbers the next evening! if you don't even master half of them...... I still advise you not to waste your time!" Telling extremely boring content, Andrei's heart is almost encroached upon by malice, a group of illiterate people who are not yet in elementary school! How dare you look down on "mathematics" that can make His Highness scratch his head blindly!?

"But it's so hard!"

"yes, yes......"

"My mind is spinning!

With the exception of some of the elves, almost all of them protested in various ways like wails.

Andre raised his hand to signal the audience below to be quiet: "There will be a math class every week, and the content of each class will be completely different...... When all my lessons are finished, the best of the best will have the opportunity to take up the special position of 'Math Teacher' at Andrari. ”

"Help you calculate Andrari's finances?"

"No, they'll be teaching all of you math, the most basic science course!"

The audience continued to wail all over the field......

"The monthly salary for this position is tentatively set at 1,000 amphimes, and you only need to give you a few limited public lessons every month like me!"

Then the audience began to have a heated discussion again......

"A thousand amphies!,That's how much amber it must be!""Half a month is enough for me to make a set of full-body steel armor!"Maybe I can exchange it for enough drinks or other snacks for a village to give to the neighbors......"

......

"Play with me...... don't play stupid guys!"

- The evil child of the abyss murmurs blasphemous whispers in a voice that only he can hear.