I could only get the math homework book and said, "This is the question I have been thinking about just now, how can I calculate this?"

"Let me see."

Xiao Ming, Xiao Hong, and Xiao Gang played table tennis together. The three of them played for three hours in total. Asked, how many hours did each of them play?

Seeing this question, Xia Xin almost laughed three times.

He won't make the same mistake.

Xia Xin immediately said seriously, "Shui Ling, this is not an ordinary question, don't underestimate it."

"oh oh!"

Luo Shuiling nodded with admiration.

"First, Shui Ling, you have to know that table tennis is a game for two people, so at first glance, they played for three hours in total. In fact, they played for two people every hour, that is, Xiaohong and Xiaogang played for one hour first, Xiaohong and Xiaogang played for another hour, and Xiaoming and Xiaogang played for one hour, so they played for two hours in total!"

“…Oh, so that’s it, my brother is so awesome.”

"Of course, most people think that this is just a simple division question, but they actually ignore it. Table tennis is a game played by two people, so the correct answer is that each person has two hours, so you can't make such a small mistake."

"Yeah, yah!"

Luo Shuiling looked at Xia Xin with admiration.

But Xia Shiqi's inappropriate voice came from the side, and Xia Shiqi replied faintly, "It's 1 hour."

"How is that possible!"

In order to revive Ge Wei and let several sisters know their "smartness", Xia Xin called the head teacher again.

What I got was the class teacher's cold answer, "It's one hour for each person!"

Xia Xin was very dissatisfied and argued, "Wait a minute, teacher, have you considered it clearly, isn't table tennis a game for two people? It should be two hours for each person."

The class teacher was in business and replied expressionlessly, "Student, please don't be stubborn. Three people play for 3 hours. Of course, each person plays for one hour. Why do I need two people? I can still hit the wall."

"That's fine?"

Xia Xinyi screamed in shock.

However, the teacher ignored her at all and just replied impatiently, "Please don't call for such trivial matters, and there are answers behind the homework book. Please proofread the answers yourself."

“…”

Xia Xinyi flipped through the answers behind the homework book, and now the correct answer is really an hour...

"hateful!"

Xia Xin suddenly turned red and explained to Luo Shuiling awkwardly, "This is an accident, an accident! Brother, I will make mistakes occasionally. If you don't talk about this, let's look at the next question, do you have anything else to do?"

Luo Shuiling wanted to say that there was nothing, but Xia Xin had a fierce expression on his face, as if he was saying, "You must have, I must answer a question." The gloomy and terrifying expression almost scared her to tears."

Luo Shuiling timidly stretched out his index finger and pointed to a question casually, "Then, let's just do this."

"good."

Xia Xinyi looked at the topic:

Boys and girls ate a cake together. Boys ate 9/13, girls ate 2/13, and they wasted 2/13, and boys spent 7 yuan more than girls. How much does this cake cost?

Xia Xin breathed a sigh of relief.

He will do this question.

Xia Xin took a pen and wrote in the notebook.

"This, look, this question is quite complicated. To calculate this way, boys eat 9/13 and girls eat 2/13. Once you reduce it, you will know that boys eat 7/13 more than girls. And this 7/13 is the 7 yuan more spent by boys. Then we continue to use division and divide 7 by 7/13 to get the correct answer, how much does it cost in total."

Xia Xin wrote a lot of arithmetic and the answer process. Finally, "From this solution, this cake should be 13 yuan."

"Oh, so that's it," Luo Shuiling nodded seriously, "Brother is so awesome!"

"Hahaha, this is a slight meaning to my brother. If you don't believe it, you will know it by looking at the answer."

Xia Xin said, turning to the answer on the last page.

"The correct answer is indeed the cake...the cake is...7...7,7 yuan?7...7 yuan?7?"

For a moment, the whole living room fell silent.

Xia Xin widened his eyes and was a little confused. After being stunned, he looked at the topic again...

After a long pause, I finally realized it and suddenly felt like an idiot...

The blue veins on the forehead stormed, his fingers trembled and pulled hard, and the homework book was halved in Xia Xinshou...

"Ahhh, brother, my homework book..."

Luo Shuiling's screams came out in the room...
Chapter completed!