RNP Chapter 859 Still Counting Money
Chapter 859 Still Counting Money
Chapter 859 Still Counting Money
There were only two classes in the afternoon and school was over in the blink of an eye.
Martin and Ma Wu came to the outside of the teacher's office.
"Wait for me here and don't go anywhere, okay?" Martin emphasized to Ma Wu in front of the door.
Ma Wu felt that her brother's words were treating her like a child - a child younger than her who could easily get lost. So she didn't answer, but just made a face.
"If you get lost, you'll be worse than even younger kids." Martin warned, and before entering the room, he thought for a moment and changed his words: "Don't eavesdrop on what I say to the teacher."
In this way, Ma Wu would lie quietly on the crack of the door and eavesdrop on Martin's conversation instead of running around.
Martin knocked on the door and then walked in.
There was only the math teacher in the office, counting some banknotes in his hand.
Martin noticed that the edges of the banknotes had "flying edges", and combined with the teacher's skilled technique and the large handful of chopsticks scattered on the table, it was clear that the teacher had been counting banknotes non-stop since class, intending to replicate the phenomenon of the number of chopsticks increasing on the banknotes.
It’s a pity that he didn’t notice the most important element of the experiment, which was to be done in front of Ma Wu.
After noticing Martin coming in, the math teacher immediately put the money in his hand back into his wallet, tidied up the desk, took out the phone he had confiscated from Martin and put it on the table: "Come on, Martin, you playing with your phone in class..."
"There's no rush for the cell phone." Martin unceremoniously dragged the teacher's chair over and sat down diagonally opposite the math teacher. His relaxed demeanor made it seem as if the math teacher had come to his territory. "I have a question for you, teacher."
The backrest of the chair can only reach half the height of the back for adults, but it is very comfortable for children, as they can even lean their heads on it like a throne.
"Ah? Um...just ask."
"Teacher, do you think that the current teaching content is too simple?" Martin asked, "Even children who have just started school have learned numbers in their daily lives before going to school, right? They can tell the time, know that there are 24 hours in a day, and especially know how many points they got on the test."
The math teacher looked at Martin in surprise and said, "So you think you already know everything in the textbook?"
Martin said calmly and modestly: "It's okay, after all, I am a survivor of the Celestial Empire Division last season."
In the teacher's opinion, first-grade math is very simple because students' foundations vary. Some students know a lot while others really don't. So we start with the simple ones to align the granularity of the students. It is also more important to lay a solid foundation at this stage and improve the ability to recognize numbers through repeated practice. If we skip the basics and teach complex content directly, students may have difficulty learning later due to a weak foundation, and may even develop "math anxiety."
However, the children in front of him might not understand what he said, so the teacher decided to change the way of communication.
"Well, let me give you a problem to solve." The math teacher said without thinking: "An old lady took 6,000 yen and bought vegetables worth 1,000 yen. The stall owner gave the old lady the change. How much did he give her?"
"Five thousand." Martin said with a dead look, "Didn't we just learn addition and subtraction within 20? How come we got to six thousand right away?"
"Because 20 yen won't buy you any vegetables. After removing the three zeros, it's still single-digit addition and subtraction." The math teacher winked and said, "Also, you got the answer wrong."
"Ok?"
"Because there is no 6,000 yen." The math teacher took out the wallet he had just put away and showed it to the audience: "There are only four denominations of 1,000, 2,000, 5,000 and 10,000 yen."
Aren't we doing math problems? Martin tilted his head and looked at the math teacher with an expression like a Shiba Inu emoji: "Then grandma can just take a 1,000 yuan bill and buy vegetables directly. The answer is no need to pay the change?"
"That's wrong too. Pay attention to the question. You are asking how much change the stall owner gave after he has already given you change. So the currency that grandma paid must be greater than 1,000 yen and less than 6,000 yen. And because grandma doesn't have exactly 1,000 yen, that means she doesn't have a 5,000 yen bill. So there is only one answer: grandma brought three 2,000 yen bills."
"The answer is that grandma paid 2,000 yen and the stall owner gave her 1,000 yen in change."
The math teacher explained while holding up banknotes as examples.
If we remove the three zeros, this question only involves comparing numbers within ten, addition and subtraction, as well as real-life knowledge points.
This old guy is trying to trick me. I have to temporarily turn off my elementary school student mode and use my adult brain.
Martin sat up straight from his lazy leaning back posture, his expression focused: "Teacher, I don't quite understand what you said, can you please repeat it louder?"
The math teacher was still a little proud. He used the same Dantian Qi vocalization method he used when giving lectures and repeated it in a deep broadcasting voice, while he flipped the several banknotes in his hand left and right again.
"have you understood?"
"I understand." Martin nodded solemnly: "Teacher, please take a look at how much money you have in your hand."
Huh? Did I take the wrong one? The math teacher looked down and found that he was holding a stack of 1,000 yen bills instead of one.
Martin asked him to repeat it again so that Ma Wu, who was eavesdropping outside the door, could hear the teacher's explanation and think about it.
If Ma Yi knew that Martin deliberately caused Ma Wu's ability to go out of control, Martin would probably be beaten again.
That’s not right. He has been counting for the whole afternoon. There aren’t so many 1,000 yen bills in his wallet?
And...the numbers are all the same!
The phenomenon of "the more you count, the more" that the math teacher had been looking forward to for the whole afternoon finally came true.
"And is there a possibility... that the old lady's dishes are subject to an 8% consumption tax?" Martin asked at this time: "The actual payment should be yen, so the old lady can pay with a yen bill and a yen coin, and the clerk will give her yen change. She can also pay with a yen bill and an yen coin and give her yen change. She can also pay with a yen bill and give her yen change..."
If Martin had asked directly, the math teacher could only praise the child for paying attention to the practical aspects of life; but after the math teacher's mind was completely clouded by the fact that the money was counting more and more, when faced with Martin's question, the math teacher.exe had stopped running.
"It's okay, just continue counting the money." Martin stood up, put the stool back to its original place, and then held out his hand: "Give me your phone, I'm in a hurry, I'll go talk to the principal about changing the lunch and English teacher later."
"Ahem." The math teacher came to his senses and brought the topic back to what he wanted to say at the beginning: "I want to talk to your parents about your phone."
"Oh, no problem." The teacher thought the child would be very reluctant to find his parents, but Martin agreed very calmly, then stood up, pushed the chair back to its original position and walked out: "Wait a moment."
Hold on?
Martin walked out of the office and saw Ma Wu standing by the door with his hands behind his back, his head turned to look to the other side, pretending that he had not eavesdropped the whole time.
Martin snapped his fingers and turned back into his original form the next moment. Then he patted Ma Wu's head, turned around, knocked on the door and walked into the office. It was no problem for him.
During the day, a sign was posted to hold a mini-parent-teacher meeting on behalf of others. I didn’t expect that I would be the first one to use it.
"Hello, teacher. I am Ma Wu's brother."
Because he thought Martin and Ma Wu were twins, the math teacher didn't doubt that the man in front of him was wrong. He was just surprised that he came so quickly, as he had clearly been waiting outside the door.
"Hello, hello, what is your name?" The math teacher quickly put away the money he had not counted, stood up and prepared to shake hands.
"Martin." Martin skillfully pulled the chair back and sat down. After sitting down, he saw the math teacher stood up and stretched out his hand to him.
The math teacher wanted to sit back down awkwardly. Just as he raised his butt, he suddenly realized what Martin said: "Ah? Your name?"
Isn’t this the name of the guy who just went out?
"In my family..." Martin pretended to consider: "We tend to be perfunctory when naming boys."
Ma Jia and Martin both directly use characters from Jia, Yi, Bing and Ding, while Ma Yi, Ma Bing and Ma Wu all chose nice homophonic characters.
No matter how perfunctory it is, you can't just give them the same name, right? The math teacher retreated strategically, but he couldn't control what other people were called, so he skipped the topic, sat down, handed the phone to Martin across from him, and then said, "Martin...ah, Martin, you didn't listen to the class today, but used your phone."
"Yeah, yes, yes." Martin agreed absentmindedly, took the phone and turned it on.
"He has just proved to me that he has mastered the current mathematics teaching content. I think that's why you are more tolerant of his not paying attention in class..."
"Ah, right, right." The math teacher hadn't finished his words yet, and when he was just taking a breath, Martin responded perfunctorily. He opened Line and saw someone @ him in the group. It was Yuanzi who asked him for confirmation when she heard about Ma Wu's arrival.
"Uh..." The math teacher continued to persuade: "The first grade is a critical period for students to adapt to "formal learning". They need to set aside time to cultivate classroom discipline, listening skills, expression habits, etc., and..."
"Okay, okay, okay." Martin was replying to Yuanzi: Come and play after school, and remember to bring a gift.
The math teacher was a little depressed. Looking at this big Martin, his sitting posture was exactly the same as that of the little Martin... Forget it, he can't teach him.
"I won't waste Mr. Ma's time..."
After Martin finished replying to Yuanzi, the math teacher happened to hear what he said clearly, and stood up and left very decisively: "Oh, bye."
Math teacher: What kind of person is this! I'll remind Xiaolin later that this kid will definitely be a troublemaker in the future.
Big Martin went out and closed the door, then smoothly switched to Little Martin, who turned around and opened the door halfway, staring at the math teacher who had just picked up the banknotes and was about to count them: "Goodbye, teacher~"
……
Then Martin and Ma Wu went to see the principal again.
On the way, Martin pretended not to know that Ma Wu had eavesdropped: "Xiao Wu, I'll give you a question..." and then repeated the question about the old lady buying vegetables.
Ma Wu was very innocent and just recited the answer he heard. Martin didn't expose it, just making sure that Ma Wu understood it.
"That's amazing. I, your brother, failed to answer this question. It seems that Xiao Wu is a math genius." Martin used words to provoke Ma Wu, and then continued to ask: "Then I will ask you another question. If the clerk uses coins instead of banknotes when giving change, how many different ways are there to give change?"
Martin thought that he should create more opportunities to let Ma Wu count more. At the same time, Martin took out several Japanese yen coins, one yen, five yen, ten yen, fifty yen, one hundred yen and five hundred yen, and handed them to Ma Wu to let her recognize the denominations on them.
Ma Wu looked at the coins in his hand, but refused to count them and chose the laziest answer: "Just take one thousand one-dollar coins!"
"That's a solution." Martin nodded in agreement: "Just knock this old lady down. She's so annoying."
"Ha ha ha ha..." Ma Wu was amused.
"That won't do." An old man's voice came from behind. Martin Mawu turned around and saw an old man with dark gray eyebrows hanging down below his beard appear behind them. He put his hands behind his back and looked down at them with a smile.
This is the principal of Teitan Elementary School. Martin just talked to him about transferring schools and the playground yesterday. Of course, he talked to him as Big Martin.
Martin originally thought that the principal wanted to teach them to respect the elderly and not hit the old lady, but the principal said: "You are from China, you probably don't know that there is a limit to the use of Japanese yen coins."
Ma Wu looked at Martin, and Martin scratched his head: "I really don't know."
The principal didn't care whether the two children could understand or not, and explained to them that one of the characteristics of RMB is "unlimited legal tender", which means that including the ten-cent coin, the amount of each payment is unlimited and no one can refuse to accept it.
What seems very normal to Chinese people is not the case in other countries.
日元只有纸币具有无限法偿，而硬币不具有无限法偿能力，原则上在一次交易中同一面值硬币法定使用上限为20枚（即硬币原则上最大支付能力为1円×20枚＋5円×20枚＋10円×20枚＋50円×20枚＋100円×20枚＋500円×20枚＝13，320円），超出部分接受方有权利依法拒收。
"So when answering this question, it is best not to have more than twenty coins of a single denomination," the old principal reminded.
Ma Wu blinked and asked, "Why is there such a trouble?"
"I don't really understand this either, but coins and banknotes are indeed different." The old principal shook his head: "Coins are issued by the Japanese government, and banknotes are issued by the Bank of Japan. There is a difference between the two."
Japan has its own national conditions. Its coins are the currency issued by the government, and the full name of the banknotes is actually "Japanese Bank Notes", which is equivalent to bearer silver notes issued by banks.
"What a hassle." Martin complained, picked up his phone and wrote something on the memo: "Forget it, I'll switch to the RMB system for you tomorrow, so you can count fewer zeros when doing the questions."
I closed Yuantiku the day before yesterday but didn't log in. This morning when I opened it, I logged in with my local phone number. Before noon, Zuoyebang called me with a sales pitch. The first thing they said was, "Hello, parent." Oh my China speed, oh my big data era.
(End of this chapter)