The last chapter ended in a hurry, now I am rewriting it.
"Class teacher, what is 9÷3 (2+1)?" asked a student wearing glasses.
"Did you make a mistake? I also asked the elementary school question: Do I still need to suck milk? I need to suck my fingers!" Su Gong almost stopped sucking his fingers. The group was amused, and the student who asked the question blushed as red as an apple.
"This classmate is asking a math question. Mathematics is a rigorous subject. Just like the egg and egg just now, one more word or symbol may have different results. The XXX number of the United States (I can’t remember what it is called) ) The spacecraft failed to launch because a wrong symbol was entered. (There seems to be this story!) Can Dou Si come on stage and write this formula?" Xia Du tapped the podium with chalk.
Dou Si: Destroyed the weakest student in the class, who was bullied to the point of being autistic and could only use studying to numb himself.
Dous lowered his head and blushed, writing 9÷3 (2+1) on the blackboard. "This is obviously equal to 9! First count the brackets and then from left to right 9÷3×3=9. Just ask me such a simple question! Why do you need to ask the class teacher?" Su Gong patted his chest. , it seems that I am a top student again!
"A key point in this question is whether there is a multiplication sign between 3 and the parentheses. If it is written, it will be 9÷3×(2+1). In this way, as classmate Su Gong said, first the parentheses and then From left to right it equals 9." Xia Du added a multiplication sign to the formula.
"But let's look at this formula." Xia Du erased the multiplication sign he added. "There is no multiplication sign in this formula, so 3 (2+1) is a whole. At this time, the multiplication distribution rate is used. Put 3 into the brackets, =9÷(1×3+2×3)
=9÷(3+6)
=9÷9
=1" Xia Du answered step by step on the blackboard.
"Because the multiplication sign between numbers cannot be omitted, it is omitted here, so this formula is actually 9÷3X, and (1+2) is an unknown number. Although we can see at a glance that it is equal to 3, when we omit the multiplication sign In the case of number, 3 (1+2) represents 3 times the unknown number (1+2), so the answer is 1."
The above is my personal opinion. It is best to come up with an authority to say that this question is wrong.
"Class teacher, dogs are so cute and intelligent. As the ancestor of dogs, why did the barking dog bite Lu Dongbin?" It seems that this girl is a dog lover!
"There is a sentence saying, dog bites Lu Dongbin - it doesn't know a good heart. Why did the roaring dog bite Lu Dongbin? This question involves mythology." Don't ask Tong Shikong if there is this sentence, because the author wants to write it.
"The Patriarch of Chunyang - Lu Dongbin, this immortal is very famous. We all know that he is a romantic immortal. The most famous one is the Three Plays of White Peony." Xia Du introduced Lu Dongbin.
"As for why he bit, it starts with Lu Dongbin's previous life, no, his previous life. Lu Dongbin's previous life was Donghua Gong, also known as Donghua Emperor. Note that he is not the peach blossom in Duoli. Donghua Emperor is the head of the male immortals. He and the Queen Mother of the West, the head of the female immortals, are husband and wife! They are husband and wife! They are husband and wife! It is important to say it three times, so the Jade Emperor and the Queen Mother are not husband and wife! They are not husband and wife! They are not husband and wife!" Xia Du emphasized continuously.
"The palace of Emperor Donghua was on the sun, and the palace of Queen Mother of the West was on the moon, which was later known as Guanghan Palace. Later, the true spirits of the sun and moon transformed into forms. The sun transformed into Emperor Jun and Donghuang Taiyi, and the moon transformed into Xi and Chang Xi. After taking shape, they entered the Palace of the Sun, killed Emperor Donghua, and then established the Demon Clan Heavenly Court. The Queen Mother of the West ran to Daozu for refuge. Then they specially made arrows for Hou Yi to shoot the sun."
"Emperor Donghua was reincarnated after his death and became the Supreme Immortal of Donghua. Unfortunately, the Jade Emperor had already ascended the throne and could only serve as a guard guarding the Nantian Gate. He and the Queen Mother of the West were still husband and wife! So you know why Bai Mudan was demoted to earth!"
"Now you understand why Lu Dongbin is called the Chunyang Patriarch! It is the pure Yang Qi of the Sun brought by his previous life."
"After talking about Lu Dongbin, let's talk about the Roaring Heavenly Dog. The Roaring Heavenly Dog is also called the Tengu. The Tengu has one thing. The Tengu swallows the sun, and the Tengu eats the moon. Lu Dongbin, who has the true energy of the sun, is just a piece of fragrant meat in its eyes. Bones." Xia Du's explanation made the class laugh.
ZAKE looked at Xia Du and felt that Xia Du was quite capable.
"Class teacher, my girlfriend asked. She fell into the water at the same time. Should I save her or my mother first? How should I answer?" It seems that the Destruction Squad has gotten along well with Xia Du, asking this question.
"Legally speaking, children have an obligation to support their parents and have an obligation to rescue them, but they have no obligation to rescue their girlfriends."
"If the girlfriend and the mother are in trouble at the same time and the mother can be rescued, but the mother is not rescued in order to save the girlfriend, if the cause of the crime cannot be ruled out, it constitutes a crime of omission."
"In other words, when you can only save one, the country wants you to save your mother."
"If you answer that way, will your girlfriend be angry and break up with her?"
"If you encounter this situation and take the opportunity to break up, you will already be jealous of your future mother-in-law before you even enter the house. If you don't make a fuss after entering the house, the family will be unfortunate. So to the girls here, please don't Ask this kind of question.”
"Class teacher, if your boyfriend answers you like this, what will happen to you?"
"First of all, I won't ask this kind of question. Even if my head cramps, I will use force to resolve the differences." Xia Du suppressed the whole class for a second.
Only then did everyone realize again that Xia Du could crush them. So everyone became honest.
"Okay, class should be able to start now." The time was almost up, and Xia Du started teaching.
"Where's the pointer? If you don't have a pointer, just make one!" Xia Du didn't find the pointer.
Xia Du came to the window and pointed at the branches outside the window. A branch broke off. Xia Du snapped his fingers and the broken branch flew directly into Xia Du's hands.
Xia Du waved a branch, and branches and leaves far away were thrown away. Xia Du tried it and found it fit. With a strong squeeze, Xia Du's palm burst into flames, and the flames spread quickly, covering the entire branch in an instant. Wait for the fire to subside. The branch in Xia Du's hand turned into a supernatural weapon.
Xia Du's temporary pointer: a supernatural weapon that Xia Du made at random. Effect, leaving a short burst of light on the blackboard.
The craftsmanship skills displayed by Xia Du once again shocked the whole class, and even ZAKE looked at him with suspicion.
The next day, Xia Du had classes as usual. Xia Du found that the atmosphere was not right when he entered the classroom.
"Classmate Sun Guangda, what's wrong with your mouth?" After Xia Du looked at it, he found that there was a black mark on Sun Guangda's mouth, which was bruised from the beating.
"I was hungry and couldn't sleep last night, so I went to Jiji Street to buy late-night snacks. As a result, a crazy woman hit the same part with a weapon more than a hundred times, which broke my muscles and veins for swearing. , I’m already a useless person who can’t speak dirty words.” Little Fatty Sun said sadly.
