Cinderella's eyebrows furrowed from the large black-rimmed glasses, and she looked at Merlin with some puff.

Even Teacher Merlin can't casually say that her grades are not good, this is her pride and self-confidence as a top student.

"I've always gotten perfect marks in math, and this time it was just a mistake."

She defended herself with some disbelief.

"Oh...."

Merlin Morde responded perfunctorily with an expression, and then he picked up the pen and paper in front of the schoolboy in front of him, wrote down lines of number formulas with a brush, and pushed it to her.

"Don't talk about anything else, let's memorize this first."

"What is this?"

Cinderella took the paper and asked with some confusion, and then she glanced at the contents of the paper, and her expression suddenly became even more confused.

"Is there any point in carrying this thing? Isn't that something that can be calculated casually? ”

The school bully girl originally thought that Teacher Merlin wrote her some mysterious witchcraft spell, but when she looked at it, there were mathematical formulas such as "one by one to get one, one to two to get two" written all over the paper, which made her feel that her IQ was insulted, if she didn't really regard Professor Merlin as her teacher, she couldn't help but feel furious.

You can bully my people, but you can't insult my IQ.

This is the insistence of Cinderella, a school bully.

However......

"How much is 738 times 685, you can figure it out in 30 seconds."

Professor Merlin on the other side asked this question in a leisurely manner, and this suddenly calmed down the anger of the school bully girl, she actually wanted to say that 30 seconds is too short, but the dignity of being a school bully made her keep her mouth shut, and she just hurriedly began to line up on the straw paper.

Merlin, on the other hand, looked at the frowning girl with a smile, and then shook her head helplessly.

Alas, sure enough, the basic mathematics of Westerners, this is still like this in a different world.

It's not that he looks down on anyone, but he just wants to say that in this era when there are no calculators, the Western algorithm is really not very efficient.

At this time, Cinderella was trying to draw rows of intersecting lines on the paper, and then counting the number of intersections of those lines little by little, and finally recording them on the paper one by one.

Merlin knows that this algorithm seems to be called line multiplication, which is a formula that can accurately calculate multiplication, as long as the crossing lines are drawn according to a certain law, and then the intersection points can be calculated according to the rules.

At first glance, it looks quite good, very powerful, and you don't need to recite any multiplication formulas to get accurate calculations.

However, the reality is that just counting 99 times 99 will almost fill a piece of papyrus with crossed lines, and once you reach the multiplication of more than 100 digits......

I can only say that I hope you don't get tired of drawing lines and draw your hands, and count the points until they collapse.

This is also the reason why people who could calculate the multiplication and division of three-digit numbers in ancient Western times could be called mathematicians.

Anyway, in the world of Merlin's previous life, it was only after the mysterious new algorithm from the East spread to the West that the West finally got rid of this complicated line multiplication.

However, there is no mysterious power from the East in this world, so thousands of years have passed, and the calculation method of people in this world has not changed.

On the mysterious side, the wizards' mental power is strong, they can complete the huge and complex calculation process in their minds by the way, and some genius wizards have developed ritual circles or alchemy props similar to calculators to assist in calculations.

But those expensive rituals or props are simply not going to be accessible to ordinary people, so don't expect too much from the mathematics of this world where technology has been crooked.

"Alright, the time is up, is it settled?"

Under the unwilling expression of the schoolboy who had not yet drawn the cross line, Merlin Mo announced emotionally.

"The result is 503475, are you right?"

Even though Cinderella was on the verge of crying now, Merlin still rubbed salt on her wounds.

"Professor Merlin, your problem is simply difficult, and it is impossible for anyone to figure out such a complex operation in thirty seconds."

The schoolboy girl who was already shining with tears in her eyes raised her head, and she still stubbornly said to Merlin.

It could be seen that the girl was really a little angry, and her address to Merlin was changed from a more kind teacher to a relatively distant professor.

"Then why did I figure it out?"

Merlin was unforgiving, he simply stated the facts.

"That's because Professor Merlin is so powerful."

Cinderella replied as a matter of course.

From the perspective of a girl who is new to the mysterious side, a powerful and mysterious wizard like Merlin can naturally easily accomplish things that ordinary people can't do, which is very magical.

Merlin shrugged his shoulders, and he let go of the staff of the snake in his hand and reached for the girl.

"Actually, I'm a pure-blooded human, since you were able to pass the freshman assessment yesterday, then you must have read the book "Fundamentals of Magic", you should understand what I mean, I can release witchcraft by relying on this cane, as for my own strength, not I blow, now you can beat me ten with one hand."

In the face of his own disciples, especially under the premise of signing a master-apprentice contract, Merlin didn't need to pretend to be a ghost, he was very shameful in the showdown.

In this regard, Cinderella was stunned for a moment, and then thought of what it meant to be a pure-blood human, her expression suddenly became incredulous, she was a little entangled and stretched out her hand to hold Merlin's hand, and then felt it slightly, and then her expression suddenly became a little guilty.

Now that she has understood what magic is, the girl didn't feel a trace of magic fluctuations from the beautiful young professor in front of her, he was really an ordinary person.

And this suddenly made the reason that the girl just said a little untenable, Cinderella lowered her head a little ashamedly, but Merlin looked at the eyes of the school bully girl and knew that this girl who was too confident in her studies was still a little proud and paranoid and suspicious of him.

"Do you think I may have calculated the answer to this question in advance and then came to test you? In fact, these are really the two numbers I think of casually, if you don't believe me, you can test me, not only three-digit, four-digit, five-digit multiplication. ”

Merlin spoke her mind for the girl with her head covered, and this immediately made the school girl a little embarrassed, because she had really thought about it before.

The school bully girl who was told to be in her mind didn't want to continue the topic anymore, because she really regarded Merlin as her teacher, and she didn't want to hurt the relationship between the two because of this.

However, after seeing Merlin's still gentle eyes, also to maintain her dignity as a scholar, Cinderella finally spoke.

"3459 times 2384."

The girl casually thought of two numbers, and then asked.

After asking, she silently counted down thirty seconds in her heart.

The school bully girl had already thought in her heart, if Professor Merlin didn't answer after thirty seconds, then she would change the subject, and everyone should just have nothing to do, and both sides would be embarrassed.

However, it was only ten seconds before Cinderella heard Merlin's confident answer.

"8246256, is this the result correct?"

Merlin asked rhetorically with a smile as he looked at the student with a blank expression.

Cinderella: "......."

Well, the school bully girl suddenly found that she couldn't judge whether Mr. Merlin's answer was right or not, because it was completely a random question he came up with, and she didn't have a standard answer.

Lost, completely lost.

Cinderella lowered her head, frustrated.

Her vision began to blur as tears wet the lenses of her glasses.

After all, the girl still couldn't hold back her tears.

She looked at the beautiful young teacher opposite with some hatred who was still smiling, and her tearful glasses were full of grievances.

Why, why did it become like this, obviously it was the first time in my life that I had a favorite teacher, but why did this teacher have to be so excessive, obviously she had nothing but studying, except for grades, and the only happiness in her life was to get a little bit of self-esteem and satisfaction from her academic performance, but why even this last little bit of insignificant happiness has to be broken by someone now.

Ahhh

The school bully girl began to be autistic.

...........