Zhang Xiaojian said curiously: "Sister Yu, is there anything wrong?"

"That's right," Sister Yu felt a little embarrassed: "I have a friend's child who is just in the fifth grade of elementary school and is doing homework here. I have to have a meeting and can't take care of him. If you are not in a hurry, please help me with a while, okay?"

Is this a question? That must work!

"What am I doing? Look at you, Sister Yu," Zhang Xiaojian slapped his chest: "As a primary school student, don't worry!"

"Okay, come with me," Sister Yu said as she walked: "Just look at him doing his homework. If he has any questions he doesn't know, please tell me."

Immediately, Sister Yu took Zhang Xiaojian into her office. As soon as she entered the door, Zhang Xiaojian saw a boy about twelve or thirteen years old sitting on the table to do his homework.

The little boy is fair and clean, and his expression is very serious when doing the test. He looks like a good baby.

Oh, let alone such a child, I can cover up a group of brothers!

"Cheng, Sister Yu, please do it first," Zhang Xiaojian smiled and said, "I'll just watch here for a while."

"Okay," Sister Yu turned her head and went out: "I'll have a meeting in General Wang's office next door. If you have any questions, just call me."

When she sent Sister Yu out, Zhang Xiaojian moved a chair and sat next to the little boy, watching him do his homework there.

It can be seen that this question is not simple. The little boy frowned while doing it. After doing it for a while, he suddenly threw away his pen and leaned on the sofa angrily, saying angrily: "This is too difficult to solve the question!"

Oh, the primary school problems will make you so difficult?

"Did you meet someone you don't know?" Zhang Xiaojian asked quickly, "Why should I take a look?"

"You?" The little boy turned his head and looked at Zhang Xiaojian, and turned back in an instant: "It's so ugly and eye-catching!"

Zhang Xiaojian: “…”

It's heartbreaking!

"I'll help you do the questions, what's wrong with not watching it?" Zhang Xiaojian said crazy: "Why is this kid so bearable?"

"You're just a naughty child," the little boy hummed, and then threw the homework over: "If you want to, just look at it, I guess you can't do it anyway."

"That's right," Zhang Xiaojian said while taking the homework: "Isn't it just elementary school problems? I'll tell you how many things come and how many things come? When we were studying, we were also known as the little prince of mathematics!"

The little boy curled his lips: "Who can't brag?"

Oh, I'll go, don't believe it, right!

Look at me, I tell you to understand what a math expert is!

Then Zhang Xiaojian started to look.

"Question 6: (9999+9997+…+9001)-(1+3+…+999)."

"Question 9: There are 7 numbers, and their average is 18. After removing one number, the average of the remaining 6 numbers is 19; after removing one number, the average of the remaining 5 numbers is 20. Find the product of the two numbers removed."

"Question 14: Xiao Ming took six tests. The third and fourth average score was 2 points higher than the average score of the first two times and 2 points lower than the average score of the last two times. If the average score of the last three times is 3 points higher than the average score of the first three times, how many points will be obtained for the fourth time than the third time?"

“Question 25…”

Zhang Xiaojian: “…”

Damn! Are all the questions for the fifth grade of elementary school now so difficult?!

After watching it for a long time, I couldn’t figure it out immediately!

"I'll just say you can't do it," the little boy pouted, "He looks so ugly, but his IQ is not very good at seeing. Sister Yu didn't say he wanted me to find a beautiful lady, even if he was a handsome brother, at least the question would be comfortable if he didn't look at it..."

Zhang Xiaojian: “…”

Today, my brother was ridiculed by a twelve or thirteen-year-old child. It’s unbearable!

"System!" Zhang Xiaojian roared: "Do you have any elementary school mathematics skills? I'm angry today! Not only do he think I'm ugly, but he also thinks I'm not educated! I can't bear it!"

System: "【Perfect Primary School Mathematics Graduation Diploma】, 200 shock points are required."

Zhang Xiaojian: "That's it!"

System: "[Perfect Primary School Mathematics Graduation Diploma] has been redeemed, and the current remaining shock points are: 275.67."

A huge amount of knowledge was passed into Zhang Xiaojian's mind, but between two breaths, he graduated from elementary school mathematics!

"Tsk, isn't it just a math problem?" Zhang Xiaojian slimly touched his hair: "Look at me, I'll teach you! Tell me, which question can't be done?"

"Why don't you write it?" the little boy pointed to his homework book: "I won't even be empty, sixth, ninth, fourteenth..."

"Then let's start from the beginning!" Zhang Xiaojian coughed, then took the little boy's pen and started writing on the paper: "(9999+9997+…+9001)-(1+3+…+999). Solution: Original formula = (9999-999)+(9997-997)+(9995-995)+…+(9001-1)=9000+9000+…+9000 (500 9000)=45000000. Do you understand?"

"System: Shock points from Ning Shuhao +7!"

Hahahahaha! Little girl, the little hairy child who is a little bitch dares to shout with his brother. Isn’t he dumbfounded this time?!

"Okay, rustic!" The little boy widened his eyes, stared at the homework book, and said, "I've made some calculations!"

Zhang Xiaojianqi's face turned dark: "Who do you mean to be a terrib?!"

Little boy: "Who told you that it was so ugly... Otherwise, what are your names?"

"Listen," Xiaobian, it's impossible not to scare you! Zhang Xiaojian gave a thumbs up: "Brother's name is Zhang Xiaojian, I will go to the White House to brag... the speaker in the future!"

"Go to the White House to brag!" The little boy's eyes lit up and he ignored the two words in the following speech: "Brother Jian, your life goal is OK! There is a future! My name is Ning Shuhao, Brother Jian, tell me what you plan to brag when you go to the White House?!"

Zhang Xiaojian: “…”

Damn it, isn't it time to talk about this now?

"Naked kid," Zhang Xiaojian wanted to give him a brain: "Honestly do your homework, what are you thinking about!"

"My name is Ning Shuhao, not naughty child," Ning Shuhao was unhappy, but after all, he was a child, so he was soon attracted by Zhang Xiaojian's words and asked, "Brother Jian, how did you solve this problem? Tell me!"

"Listen, now is the time to witness miracles!" Zhang Xiaojian held the pen and began to talk to Ning Shuhao bit by bit: "First of all, this original form can be changed. Did your teacher tell you this?"

"Yeah, I've said it," Ning Shuhao nodded suddenly and said, "But this question is a bit troublesome. There is no 9,000 in front."

"9000 is a base number. Now the difference is just a matter of quantity," Zhang Xiaojian is now in his hands. He said with a slight sensation: "I ask you, after removing 9000, will it become a zero-return number like 999-999, 997-997?"

Ning Shuhao thought for a while, and then said, "Yes, it's all zero."

Zhang Xiaojian continued to tell him: "Then the next thing is to calculate how many zeros there are, right? To be simple, 1, 3, 5, 7 to 99, how many numbers are these?"

"I'll do it," Ning Shuhao began to sway his fingers: "One to ten is five, then one to one hundred is fifty, and one to one thousand is fifty?"

"By the way," Zhang Xiaojian slapped Ning Shuhao's back: "Kid is still a little crazy, haha!"

"Hehe," Ning Shuhao finally laughed: "The third most common world..."

Zhang Xiaojian: “…”

Don't you blush when you say this?
Chapter completed!