Kumano is really good at math. He can count how many people there are in the tribe, and he can't make mistakes when dividing things.
But from one plus to ninety-nine...
He had never counted like this before.
However, this can indeed be practiced, and when will it be used
Thinking like this, Kumano began to count: "1, 2, 3..."
Grandpa priest taught him to count to one hundred, but this is easy to make mistakes, so he counts ten, and after counting ten, he puts it in a pile, and when there are ten small piles, it is one hundred. The next hundred...
Finally counting the results, Kumano immediately looked at Zhou Ji and wanted to tell his results, but found that Zhou Ji was already asleep.
He was a little itchy again, but Zhou Ji was not feeling well…
Kumano simply lay down on the bed to be self-sufficient. He used to do this all the time, and after he became a partner with Zhou Ji, he changed to Zhou Ji to help him.
In fact, Zhou Ji, who didn't sleep: "..."
Halfway through his work, Kumano saw Zhou Ji open his eyes, leaned in and kissed again, and said, "Zhou Ji, touch me!"
Zhou Ji glanced at him, stretched out his hand, and Kumano hugged him and hummed softly.
When it was finally over, Kumano comfortably didn't want to get up, but Zhou Ji pinched his face: "Have you figured out the question I asked you to calculate?"
"It's figured out!" Kumano said.
"how many?"
Kumano got up from the bed, looked at his pile of sticks again, and finally said, "It's forty-nine hundred plus forty-nine!"
"Wrong, it should be forty-nine is one hundred plus fifty." Zhou Ji said, people in the tribe generally don't touch too many numbers, so they only count to one hundred, and then a few One hundred said so.
Modern people think it is quite troublesome to toss like this, but it is actually quite good for people to count to one hundred smoothly. Zhou Ji remembers that to say ninety-nine in French, you need to say four twenty plus ten plus nine...
"Why?" Kumano looked at Zhou Ji puzzled: "Have you counted? I haven't seen you count!"
For such a powerful topic, if Zhou Ji had counted it, he should have seen a lot of sticks.
"I don't need to count, I know the answer when I think about it in my heart." Zhou Ji said.
Can you know the answer by thinking about it? Kumano looked at Zhou Ji in shock: "Did the beast god tell you?"
Zhou Ji: "...you think too much."
"Then how did you know?"
"Didn't you separate the piles before? The first pile is one, and the last pile is ninety-nine. If these two piles are added together, is it one hundred?" Zhou Ji slowly talked about the algorithm, and his parents were very supportive. He attached great importance to education, and he was sent to the Mathematical Olympiad class when he was very young. This kind of topic was used for the enlightenment of Mathematical Olympiad at that time.
Kumano suddenly realized that he put it again and found that it was forty-nine hundred plus one fifty.
As for why he miscalculated before, it was probably because he accidentally lost a piece of it.
After making the question, Kumano said sincerely again: "Zhou Ji, you are really too smart!"
"Do you want me to teach you?" Zhou Ji asked.
Kumano said without thinking, "I do! But haven't I already learned it?" He has learned this topic, and he can give it to a priest to do it!
"You have only learned one algorithm, I'll make another debut... I caught eight dinosaurs. Some of these eight dinosaurs had two feet, some had four feet, adding up to a total of twenty-two feet. How many two-legged dinosaurs, how many four-legged dinosaurs?" Zhou Ji said, the classic Olympiad problem chicken and rabbit came together.
Kumano didn't know the math Olympiad problem, so he took out twenty-two sticks and started swinging...
It is not difficult to put this question so directly. After each of the eight dinosaurs was given two legs, the remaining four legs were added, and it was calculated.
Kumano was a little smug, but the result...
Zhou Ji said: "What if I caught a total of 100 dinosaurs, 300 plus 20 legs in total?"
Kumano was playing with arithmetic before, and he thought it was quite interesting, but when Zhou Ji said this, he was stunned—this is how to do it? And... "You can't catch that many dinosaurs! Now, the people in our tribe can't catch them together."
Zhou Ji smiled: "I will give you fish soup, after you drink half a bowl, I will fill it for you, you drink half a bowl and I will fill you again, you drink half a bowl and I will fill it up again, this time You drank all the fish soup, how many bowls of fish soup did you drink?"
Kumano didn't understand at once: "Why count this?"
"A dinosaur can eat half of the grass in a year, how many years will it take for it to eat all the grass?"
"I know this!" Kumano said: "Two years!"
"Wrong!" Zhou Ji said: "The grass is the president, it can't be eaten in two years."
Indeed it is! Kumano looked at Zhou Ji with admiration, Zhou Ji was really too powerful, too smart.
Zhou Ji, who used the elementary school math Olympiad and brain teasers to toss the primitive people, saw this and said: "Come on, let me teach you arithmetic. To become a qualified patriarch, you should learn more."
"Okay! Do you want to let the priests learn together?" Kumano didn't dare to say that he had learned it this time, but he thought about the priests - priests have always liked to learn these things.
"I'm not comfortable, I can't teach too many people." Zhou Ji said.
"Then teach me one!" Kumano said without thinking, and decided to learn it by himself, and then teach it to the priest.
"Then I will teach you to write numbers first." Zhou Ji said.
"Write?" Kumano wondered.
"Yes, write." Zhou Ji took out a piece of charcoal that he used as a pen and gave it to Kumano: "Take this and write."
Kumano took the piece of charcoal, and then began to write numbers under the guidance of Zhou Ji.
Zhou Ji actually thought of a way to write each number. It's really amazing. He is even more powerful than the previous priests.
Kumano looked at Zhou Ji with admiration, while using his big hand, holding charcoal, he slowly wrote in the hole.
Zhou Ji said: "Your '8' is not good-looking... I hold your handwriting."
"Okay!" Kumano agreed, and then Zhou Ji held his hand.
His hands are rough, but Zhou Ji's hands... are really tender and smooth!
Xiong Ye was a little confused, and then heard Zhou Ji say: "If you don't pay attention to your writing, I will give you a little punishment."
"What punishment?" Kumano asked.
Zhou Ji drew a circle on Kumano's face with charcoal.
Kumano doesn't know why - is this a punishment? painless...
Then he was painted several times on his face, and later on his body...
Kumano didn't think there was anything wrong, and what Zhou Ji taught him was mostly knowledge only known by the beast gods. In the past, what he learned from priests was not as good as these. If he didn't learn well, he would be beaten. Now if he didn't learn well, he was just drawn in circles. What is this
Kumano studied the Arabic numerals from 1 to 9 for an afternoon, and he could count from 1 to 100 smoothly.
At this time, Xiong He's voice sounded: "It's time to eat!"
Kumano immediately ran out: "Zhou Ji, I'm going to eat first! I'll learn later!"
Zhou Ji: "..." This guy forgot to wash his face!
Zhou Ji was too lazy to go down and lay down directly.
Kumano was excited when he heard the sound of eating, and indeed forgot what was on his face, and didn't remember it until he went outside.
But he didn't take it seriously. If he forgot, he forgot. It's okay to draw something on his face, and it doesn't affect his actions!
However, when the people in the tribe saw him like this, they were surprised: "Xiong Ye, what's on your face?"
"It's a circle, Zhou Ji drew it for me." Kumano said.
"It's beautifully drawn! Kumano, you look so beautiful!" Xiong Qi praised: "Look at this circle, how round it is, both sides are still the same!"
When Zhou Ji used charcoal to draw a circle for Kumano, it wasn't a doodle, he paid attention to symmetry. Now Kumano has a circle on his face, looking very mysterious!
The priests came over: "Kumano, why did Zhou Ji draw a circle for you?" Is this a strange ceremony, or a sacrifice
"Zhou Ji drew it for me when he taught me to count." Kumano wanted to say that he didn't learn how to draw him for Zhou Ji, but he didn't want people to know that he was stupid, so he just didn't say it.
"Count?" the priest asked curiously.
"It's just counting." Kumano looked at the priest: "Grandpa priest, do you know how much one plus two plus three adds up to ninety-nine?"
"This is a bit difficult, I'll take it slow, and I'm afraid there won't be enough sticks." The priest started looking for sticks.
Kumano said: "Actually, it's very simple, it's calculated like this..." He repeated what Zhou Ji said.
The priest was shocked all of a sudden, how could this happen? so amazing!
Especially... Kumano actually wrote numbers on the ground!
The original number can also be represented by such a symbol? It's really convenient! He has always used wooden sticks to pose, and if he wants to write, he just draws a few sticks... The writing is particularly sour.
The priest's expression became excited, looking at the circle on Kumano's face, as if he saw a pile of treasures.
The priest looked reverently at the circle on Kumano's face.
Zhou Ji didn't want to go to the tribe below to mix, so he made some barley to cook porridge, and at the same time began to miss elephant bird meat.
If he eats too much fish every day, he feels that the fish is not delicious, and he wants to eat other meat.
There was nothing to do today. Zhou Ji didn't use his mental strength to observe the situation in the mountain. He didn't turn his head until someone climbed to the entrance of his cave, and then he saw the old face of the priest.
The priest grinned at him, revealing his gums with only a few teeth left: "Zhou Ji, you can also draw some circles for me, I also want to learn the knowledge of the beast gods!"
Zhou Ji: "..." What did Kumano say below!