Hearing the beauty's question, Cheng Zhong's heart was a little confused.

He didn't want to say that he was the result of repeated practice of abacus and strong memorization.

Because if the ancestors of the secret tribe did not pass down the abacus method, he should explain the two "abacus" clearly for a while

Words, I'm afraid it's too difficult.

Besides, he didn't want the beauty to think that he would only memorize by rote and not understand mathematical logic.

As his mind spun around, he said copingly:

"There are all kinds of methods of numerical mental arithmetic, and there are so many differences that I can't list them all.

My algorithm is ......"

Priya thought that Cheng Zhong was selling Guanzi, so she kowtowed again, looked at him with a pleading gaze, and said:

"Please teach me, Lord Angel!"

Cheng Zhong had already thought of the simple heart algorithm at this time, so he shook his little head fiercely and said:

"I'm telling you, with fifty as the central axis, fold the whole chain of numbers, and then add them symmetrically, for example, zero plus hundred, one plus

Ninety-nine, two plus ninety-eight, and so on, we get fifty hundred, that is, five thousand, plus fifty on the central axis, isn't it five thousand and fifty? ”

"Oh, that's how the numbers can be calculated!"

When Priya heard this, she suddenly realized.

After all, she has been teaching mathematics at Tianma's university for the past two years, and she is still sensitive to number crunching.

It's just that the overall level of mathematics of the Wusun people is really low, and college mathematics is probably only equivalent to the second primary school in the main world.

3rd grade level.

Therefore, it is more than enough to be a mentor to their mentor with Cheng Zhong's smart little brain.

Priya was stunned for a moment, opened her mouth and waited to ask a question, and then Cheng Zhong stopped doing it, and said first:

"Hey, I said beautiful teacher, you are endless, don't you think I am your student, do you have to take the exam?

I don't know everything, I know everything, and you keep testing me with some tricky and weird questions, don't you want me to make a fool of me.

Come and don't be rude, do you dare to accept my questioning?"

Two pieces of red glow flew up Priya's face, and she lowered her head and said in a trembling voice:

"Angel ...... My lord, I ...... I'm rude, I want to beg for forgiveness!

Compared to you, I ...... Something that will ...... Too little.

Father...... Teaching in the Hidden Tribe, he taught me a few ...... The poems and songs left by the ancestors.

In the past two years, I have been a teacher at Wusun University, and I have taught myself mathematics, and I can only add, subtract, multiply and divide a little.

I don't know, you ...... What do you want to test me?"

"Okay, I'll pick your strengths.

123456789, it's a nine-digit number, add this number eight times in a row to count how much, add nine times in a row to count how much, please answer me with mental arithmetic. ”

After Cheng Zhong finished speaking, he closed his eyes, bent his arms flat to the table, and put his head on his arms to pretend to sleep.

After about five minutes, he looked up at the beautiful teacher who was kneeling on the ground.

I saw that her eyes were slightly closed, her hands were tangled in her shawl long hair, her face was sallow, and she was dripping with sweat.

Although Cheng Zhong is small, he also knows pity and cherishes jade, and he suddenly feels unbearable.

He stepped forward quickly, grabbed Priya's two arms, and said:

"Forget it, the exam is over, you must not pull out all your beautiful hair!"

"I ...... I added it to the fifth time, and I forgot all the numbers in front of it, how can I add it?!"

The beautiful teacher shook her head and said.

After that, she squatted up and half-stretched, grabbed Cheng Zhong's shoulders with both hands and asked:

"Please, Lord Angel, do you know how to count?"

"Of course I know, add eight times to count 987654312, add nine times, you have to count 11111111101. ”

Cheng Zhong didn't even blink his eyes, and directly reported the number of two.

In fact, these two numbers are also the numbers that he has made by repeatedly practicing abacus, and he has always remembered them.

"Please teach me, how do you calculate?"

The beautiful teacher must have this question.

Cheng Zhong thought for a moment and said:

"The best algorithm, you can't understand what I said.

Let me tell you a simpler algorithm, which is to subtract 123456789 1234567890 to get the result of adding nine times in a row, and subtracting the 123456789 again is the number of eight times in a row. ”

"Ah, that's a lot easier, I'm not afraid I can't remember the numbers in front of me.

I'm really brainless, why didn't I think of this way?

I'd also like to ask my lord, these two numbers seem to have a pattern in them, don't they?"

"Of course, the law you see is mathematics, the truth contained in numbers. ”

"Does it make sense in the numbers?"

"Everything in the universe is inextricably linked, and every discipline has a great way to contain it.

For example, adding 123456789 eight times in a row to get 987654312 is the reason that if a small new thing is constantly superimposed and developed, it will undergo earth-shaking changes when it reaches eighty percent, and it will be completely reversed from the original form of things.

When it is stacked to a maximum of nine layers, it has to be counted 11111111101, indicating that once a thing has developed to the extreme, it has reached a higher level and platform, and everything starts from scratch and starts from scratch. ”

Seeing that the beauty was bent on seeking advice, Cheng Zhong didn't care whether he was right or not, so he simply let go of his mind and made a big fuss.

Hearing such a wonderful knowledge, Gao Gexing's eyes were about to fall.

However, she is really a strange one, and she still wants to get to the bottom of it.

I heard her ask again:

"My lord, what ...... Why isn't the number that added eight times completely reversed, ending up with 12 instead of 21, and why isn't the number added nine times all 1 and the penultimate digit being 0?"

Hearing her ask like this, Cheng Zhong smiled bitterly, but still replied after the little brain turned sharply:

"Anything, through superimposed development, can go to the opposite state of the original state, or it can rise to a new realm, but it can never reach pure and pure, and there will always be a little variable.

That's the complexity of how things develop.

Only by noticing this small difference and change can I understand a little bit of the surface of the Cosmic Dao. ”

After saying this, Cheng Zhong breathed a sigh of relief, and a lot of sweat oozed from his face, and he couldn't help but sigh in his heart:

"What a difficult woman, I can barely justify myself!"

"Ahh......h The angels are truly God-men!

These truths you said, I have never even dreamed of it!

From now on, I am willing to worship you as a teacher and follow you all my life!"

This beauty became really fast enough, and instantly regained her Han name, and seemed to have an iron heart to set the clock.

"Hahaha, yes, yes, you've finally figured it out.

Since you follow me, we will have time to communicate in the future, and this is the end of tonight's conversation.

Now, it's past midnight, please pack up and come with us!"

After Cheng Zhong finished speaking, he returned to the table and rested there.

To be honest, this whole day of tossing, coupled with the two hours of examination and interrogation of the beautiful teacher, no matter how energetic people are, they will be defeated.

Cheng Zhong has been able to support it until now, all thanks to the power of the "one law and one pill" of the Vedic gods.

But he was also human, and he was tired, so he was very nostalgic for the feeling of lying on the table and pretending to sleep.

Gao Gexing wanted to pack his things, so he prepared to go to the bedroom first.

The moment she passed behind Cheng Zhong, a stubborn voice sounded in her head:

"Try him one last time, try him one last time......"

Suddenly, she bent down, grabbed a heavy wooden pier on the ground with both hands, and smashed it directly into the back of Cheng Zhong's head.

Ahead, the two of them were writing and talking, and Brulari barely understood what they were doing.

Extremely bored, she wandered in and out of the door, in order to fight the sleepiness that came from time to time.

At this time, when I saw the movements of the female teacher, I was so frightened that I only had time to shout:

"Brother, hide!"