Zhou Mi was a little annoyed in an instant: "I want to see what kind of genius you are!" ”

Su Chen didn't pay attention to it so much, and waited until the things were delivered.

Begin writing ten characters on the first page.

"What is this?"

Zhou Mi, who was sitting next to him, saw these characters, but he just felt very simple, but he seemed to have some deep meaning.

"This is called a number!"

Su Chen directly removed the three words Arabic.

What are you kidding, you copied everything yourself, and left them a name?

"Numbers?"

Zhou Mi froze in place.

"Yes, because I thought about it, I set them as Su Chenshu!"

"Su Chenshu? What's the use? ”

Zhou Mi asked rhetorically.

"It's very useful!"

"This represents zero, and this represents a ......"

Su Chen told Zhou Mi the role and pronunciation of the ten numbers one by one.

Zhou Mi asked a little strangely: "But, isn't this the same?" It's just that the way of writing is a little simpler. ”

"Then, let's change the way it is written!"

While speaking, Su Chen handed Zhou Mi a charcoal pen.

Zhou Mi picked up the charcoal with some curiosity and looked at it seriously: "How to change it?" ”

"Peach, you come, let's write it."

Tao'er nodded slightly, he already knew about this number before. Naturally, we know the gap!

"One!"

Su Chen and Zhou Mi lowered their heads and wrote them down directly.

"Thirty!"

"A thousand!"

"10,000 ......"

Peach's voice was soft and fast, and both of them wrote very quickly.

"You see, it doesn't make a difference!" Zhou Mi raised his head and said proudly.

"Thirty-six thousand eight hundred seventy-two!"

Momo spoke again.

Su Chen didn't say a word, he wrote it, and when Zhou Mi finished writing, he turned around and looked at Su Chen's number.

I was stunned for a moment, and after a while, it dawned on me, and then I continued: "The more complex the number, the simpler your method is, right?" ”

"Yes, not only in writing, but also in calculation, it's very simple!"

Su Chen said again.

Zhou Mi looked at Tao'er in disbelief: "Will you be able to solve the problem?" Come up with a slightly more complicated topic, I'll calculate it with Master Su! ”

For arithmetic, Zhou Mi is still quite confident.

From childhood to adulthood, she is particularly proficient in this aspect, and every year in the treasury, large and small cashiers, she will personally see it, although she dare not say that there is no problem at all, but it is already very difficult.

"Good!"

Su Chen glanced at Tao'er, and then nodded slightly: "Just come up with a random topic, the kind of topic I taught you before." ”

"If the rope is folded three times, the rope is four feet more; If the rope is folded four times, the rope is one foot more and the rope is longer. What is the depth of the well?"

Zhou Mi heard about this.

His brows were also deeply furrowed, and his eyes were a little solemn.

This problem is indeed a bit complicated, but it can also be solved, and after thinking for a moment, he nodded slightly, and was about to write and draw.

only to find that Su Chen next to him had put down the pen.

"You ......"

"It's done!"

Su Chen nodded slightly, and then said with a smile.

Zhou Mi was already a little stunned, as if he couldn't believe his ears, he looked at Su Chen in front of him, and then hurriedly looked over.

Just after looking at it, I instantly felt a deep sense of frustration.

What is written on it, if you put it into the numbers, it will be very easy, and it will be very easy.

However, if she is allowed to do the calculations herself, she will definitely be able to calculate them, but the process may be a little more troublesome.

Although I already have an eyebrow, I know what kind of solution this problem should be. However, the gap between the two is already visible!

"Hmm!"

Su Chen let out a long breath, looked at the person in front of him, and after a moment of silence, he continued: "Actually, it's not another problem, it's because of the formula, and it's also the convenience of this number, no matter what kind of problem it is, there is actually a set of formulas that can be replaced." Then from the formula forward or backward, it should also be true! ”

"So, I'll be able to solve this problem faster and easier!"

"Is this one of yours, the rope is A, and the depth of the well is B?"

"Yes!"

Su Chen nodded again.

"Can you teach me?" At this time, Zhou Mi has put away her contempt, she is a person who is very sensitive to numbers, so naturally she can see very easily, compared with her own, this calculation method is simple and easy, I don't know how much.

"Good!"

Su Chen nodded: "Then let's start to know from these numbers again!" ”

"Ninety-Nine Arithmetic Table, you should know, right?"

"This is natural, children will carry it!"

Zhou Mi glanced at Su Chen a little speechlessly, thinking that Su Chen was despised.

"You can bring all of that into a whole new number. Use these numbers instead! ”

"Hmm!"

Zhou Mi listened carefully and studied carefully.

I have to say that Zhou Mi is very smart, but after more than two hours or so, he has been able to use a lot of formulas and methods very skillfully to calculate, in fact, this is also very closely related to Zhou Mi's previous foundation is very solid.

Zhou Mi just felt unfamiliar with this number and the formula for calculation.

However, for arithmetic, it is already very good.

"This method will be very simple, and if you dig deeper, I am afraid that it can be extended to more fields. It's just that these things are not something that ordinary people can teach, right? ”

Zhou Mi asked directly.

Although this thing has been invented, it is also a big trouble to promote.

"Well, so, I also need some bookkeepers to master it first, and now, the people in the entire mansion can be mastered perfectly, including me, Tao'er, and Master Tang, in addition, even if other people know, they are all half a catty!"

"Count me in. If I don't have anything to do on weekdays, I can also go to the school and give lectures to the students! ”

Zhou Mi's voice was very soft, and he said with a solemn face.

"As for Mr. Bookkeeper, I can find a way to help you get some from the prison in Shendu. Only, you need to teach them! ”

As Zhou Mi spoke, he looked at the numbers in front of him again: "However, the numbers of this big week are so simple and the formula is so convenient, they should learn it as soon as they can!" ”