Fang Yiai couldn't help but say angrily: "Why do Your Highness and I carry one bag less than you every time?" If you don't accept it, let's try it and see who is carrying one less bag? ”

Wang Xiaotong couldn't help but say with a dark face: "You shut up for me!" ”

Then, Wang Xiaotong said to Li Su: "If you are in the column, it should be three plus two times two." ”

Li Su nodded, and then asked rhetorically: "What is the amount of three plus two times two?" ”

Before Wang Xiaotong could speak, Fang Yiai had already replied first: "It's equal to ten!" ”

Li Su nodded and said, "But the correct result should be seven bags!" This is the role of the priority of the operation symbols, if you calculate multiplication and division first, then add and subtract, there is no such problem. ”

Wang Xiaotong pondered it carefully, and couldn't help but suddenly become enlightened.

But soon, Wang Xiaotong thought of a new question and couldn't help asking: "Then if it is the situation just now, how to ask for the amount of two days?" ”

If you want to find the amount of two days, you have to multiply it by two, but according to the algorithm of multiplication and division first, then add and subtract, the result is wrong.

Therefore, Wang Xiaotong feels that this operation symbol is still flawed.

Then, I heard Li Su say: "This is very simple, you can introduce a parenthesis and prioritize the content in the parentheses." ”

As he spoke, Li Su picked up the pen and began to write on the scratch paper.

And Wang Xiaotong walked up to Li Su and carefully looked at the symbols.

Seeing the brackets written by Li Su, Wang Xiaotong couldn't help but show a thoughtful look on his face.

Li Su continued: "If it's not enough, you can also add brackets and curly braces, if it's not enough - you shouldn't need such a complicated equation, and if it's not enough, you can list them separately." ”

Wang Xiaotong couldn't help nodding again and again, and then asked curiously: "Li Su, what other symbols have you studied?" Let's talk about it? ”

"This-"

Actually, Li Su doesn't want to say much, are you a gentleman or am I a gentleman?

However, Li Su considered that if he didn't say it now, when he remembered it, he was afraid that he would have to trouble himself again.

Then let's just say it yourself.

Li Su continued: "There is also = sign, and there are greater than less than, square, square root, and so on. That's right, and there are fractions and negatives. ”

Wang Xiaotong asked puzzledly: "What are fractions and negative numbers?" ”

Then, Li Yu patiently explained to Wang Xiaotong.

And many students in the school were stupid at this time.

Nani?

Who teaches whom now?

And Wang Xiaotong was getting more and more excited, and when Li Su explained about it, Wang Xiaotong quickly took paper and pen, and said to Li Su: "Li Su, you wait, I will write down all what you said, so as not to omit it." ”

After that, Wang Xiaotong asked Li Su while taking notes on these symbols.

After memorizing, the morning was almost over.

And Wang Xiaotong didn't have the heart to lecture to the students anymore, so he waved his hand and said, "I have a holiday in the afternoon, and I will come back to class tomorrow!" ”

"Oh, yes! Great! ”

"Master Wang is the best!"

After an afternoon of vacation in vain, these students were very happy.

Li Su also smiled slightly and walked out of the school.

After returning to the Liang Palace, Li Su learned from Liu Zhi that the father and daughter of Lizheng Liushan in Wucheng Village came to see Xue Rengui, and they were going to marry tomorrow.

Li Su thought for a while and said to Xiao Liuzi: "Xiao Liuzi, you go to the first floor of the world to withdraw ten yuan and send it, and then help him find a good matchmaker and dowry." ”

"Yes, Your Highness."

Then, after lunch, when Li Yu just wanted to go to the first floor of the world to have a look, he saw Li Mengxin and Wu Jue coming together.

Huo, it's really ghostly!

They had just returned, and they came.

In fact, Li Su underestimated the appeal of a good story to these little girls.

Don't say it's them, when Li Su was a child, in an era when there was no mobile phone and no computer, after watching two episodes of The Legend of the Condor Heroes every day, didn't he can't wait to see the plot later in the blink of an eye?

After these two women came, they didn't bother to hide that they were here to find Xue Xiaoxiao, well, Xue Xiaoxiao was not here at this time.

The two women directly pulled Li Su and asked him to continue telling the story.

In desperation, Li Su had no choice but to make a pot of tea, continue yesterday's plot, and then continue to talk down.

When it came to the first time that Guo Jing and Huang Rong recognized each other, eh, it was the first time they recognized Huang Rong who changed back into women's clothes, Li Mengxin and Wu Yu only felt that their hearts were drunk.

It's really beautiful, it's beautiful!

And as the plot unfolds, the two girls immediately indulge in the development of the story.

Sometimes they show infatuation, sometimes they smile, sometimes they grit their teeth with hatred, and they have completely fallen.

Then until Guo Jing met Mei Chaofeng, the two girls suddenly became nervous, and unconsciously, their little hands quietly pulled together, and their fingers were interlocked.

At this moment, Xiao Liuzi suddenly ran in and said anxiously: "Your Highness, it's not good, it's not good, Liu Ruyan was snatched away, and Xue Rengui and others fought!" ”

What the?

After hearing the news, Li Su was taken aback, immediately got up, and said to Liu Zhi first: "Liu Zhi, you go and tell Gao Fan immediately and ask him to bring dozens of people over." ”

Then he asked Xiao Liuzi, "Where is it?" You lead the way ahead! ”

Xiao Liuzi nodded, turned around and walked out.

Li Su kicked Xiao Liuzi directly in the back and said, "Bastard, run, it's still slow here!" ”

"Yes, Your Highness!"

Xiao Liuzi ran all the way in front, and Li Su followed closely behind.

After only running one street, Li Su was tired and sweating, panting, and couldn't run.

The little six sons in front took the lead, and they ran almost gone.

I'm really not afraid of god-like opponents, but I'm afraid of pig-like teammates.

Li Xuan shouted breathlessly, "Little ...... Six...... Son, you come back to Your Highness! ”

The little sixth son in front turned around in time, only to find that he had left His Highness behind.

After running forward for another street, I finally arrived at the place.

In front, there is a private garden, and when you enter the garden, there is a gazebo.

Inside the pavilion stood a teenager who was as obscene and thin as a hemp pole, and beside him, Liu Ruyu was tied up by five flowers.

Outside the pavilion, Xue Rengui was crazy, fighting to the death with more than a dozen thugs.

And there were still more than a dozen thugs lying on the ground, humming and chirping and unable to get up.

These thugs all carried swords on their bodies, while Xue Rengui was bare-handed.

Although Xue Rengui was encircled, he was like a fierce tiger, a pair of iron fists were extremely fierce, and smashing it with one punch was like smashing it with an iron hammer.

Although Xue Rengui was brave, he fell into their trap as soon as he came up, and he didn't hold a weapon in his hand, and his body was already scarred.

However, those thugs, as long as they were close to Xue Rengui, could basically solve the battle with one punch, so that those thugs did not dare to press Xue Rengui too hard.