Location: Symbol Kingdom
Characters; =、÷、×、+、-、()
My name equals a number. Look how neat my two braids are!
My name is organization. Although I am not very good-looking, I am very useful!
X: My name is multiplication sign. I don't look right, but don't write me wrong!
+:My name is plus sign. I look like ten, but I'm not ten, so make it clear!
-:My name is minus, just like one. How beautiful and neat!
One day, the symbol girl was noisy in the symbol kingdom.
Book: I'll give you 1 title. You should sit still. The topic is this:
3 3 3 3=6
The symbols are all standing, there is nothing wrong!
(): It's a good thing it's not as ugly as the slogan, otherwise we'll become ugly ducklings when our neat queue is in a mess.
Hearing (), the ship bowed its head.
● Are my two black balls so annoying?
Book:+How can you say that? We are all good friends and must help each other!
The symbols were ashamed and let Yan join them again. Children, do you know how they are combined?
"Poetic and picturesque" in Mathematics
In the math interest class, Teacher Zhuang brought us an interesting topic:
During the Qianlong period of the Qing Dynasty, Emperor Qianlong traveled south of the Yangtze River and met an old man with a birthday boy.
Upon inquiry, the old birthday star 14 1 year-old, Emperor Qianlong gave the old man a couplet: flowers bloom again, plus March 7.
Emperor Qianlong asked his accompanying minister Ji Xiaolan to make a couplet, which was very difficult for him. His couplets are: Celebrate the ancient and the rare, celebrate the spring and autumn.
The teacher said, "There is a math problem hidden in this couplet. Please calculate how old this old man is? " After listening to the teacher's words, I think "Hua Jia" means 60 years old, "Re-opening" means two 60 years old, "Sanqi" means 2 1 year old, and the first part is 60 × 2+21=141year old; Ancient and rare means seventy years old, and "double celebration" means two seventies. "One more year in spring and autumn" means one more year, and the bottom line is 70× 2+1=141year. It turns out that there are also mathematical problems hidden in couplets!
In fact, as early as ancient China, scholars often made couplets to recite things and metaphors, and they were very good at embedding some numbers in couplets, which made them not only literary and interesting, but also informative.
Adventures of digital kingdom
...... Xiao X waded all the way to the foot of the digital kingdom, but the guard at the foot of the mountain refused to let him in and said, "I heard that you are from the alphabet kingdom, and others said that you are smart, so I will test you." "good! It is not that easy to test me. " The guard cleared his throat and asked, "What numbers do V and X, I and M stand for in Roman?" "V stands for 5, X stands for 10", and little X blurted out. "I and M stand for 1 and 1000, respectively." Digital Guard had to let Xiao X pass. X thinks I can go to the digital kingdom now, but things are not as simple as X thinks. When I came to the gate of the kingdom, I was stopped just as I wanted to go in. Little X said, "I am little X in the alphabet kingdom. Please let me go in and see the king. " The guards were even more excited when they heard that they belonged to the alphabet kingdom. "Since you say it comes from the literary kingdom, I will ask you a question. If you get the right answer, you can go in. If you answer wrong, you can say goodbye. Team a will join team b to fight the enemy. Distance between two teams 18km. One day, they started from their own company at the same time. Team A runs 3 kilometers per hour, while Team B runs 6 kilometers per hour. Team A left with a dog. As soon as they set out, the dog ran to Team B at a speed of 20 kilometers per hour, and then to Team A in front of Team B. In the long run, how many kilometers did the dog run when the two teams met? " The doorman looked at little X and thought it would definitely not happen this time. Little X frowned and said, "This dog ran 40 kilometers, because the dog ran back and forth at the speed of 20 kilometers per hour from the meeting of the two teams, so the time for the dog to run was the meeting time of the two teams, 18÷(6+3)=2 hours, so the dog ran 2×20=40 kilometers." The guard was dumbfounded and had to let him in.
The king saw little X enter the castle and received him warmly.
Interesting decimal point
Hi! Let's make a new friend-decimal point.
The decimal point is naughty. Once the teacher said, "3 is an integer. Change it to a number with a decimal part of one digit. " Obviously it is 3.0, and the decimal point just ran in front of 3 and became 0.3, which is a big mistake! Besides, 10 times 0.3 is 3.0. Sometimes you have to write 3.068, but the decimal point becomes 30.68 after zero. Sometimes the decimal point goes after 6 and becomes 306.8. The decimal point is cute and naughty, so students should be careful! Stop learning!
Xiao x goes to the country of mathematics
Entrusted by the letter king A, Xiao X sent a gift to the math king O, and Xiao X set off with the gift.
On the way, little X will pass through a mysterious forest. This forest is full of mystery. Every time he leaves, a man will appear and ask a question. If he answers wrong, he will disappear from this world forever. If he answers correctly, he can move on. Little x risked his life and walked and walked. Suddenly, a farmer appeared. He said to little X, "What are the last two numbers 1, 1, 2, 3, 5, 8, 13?" X thought for a moment and said, "It's 2 1 plus 34, because 1 plus 1 equals 2, 1 plus 2 equals 3, and 2 plus 3 equals 5. We can calculate them one by one." The farmer said, "You got it right." Then he disappeared. Little x walks and walks. Suddenly, a Chai Fu appeared. He said to little x, "every tree in this forest is 7 meters." Please figure out how many meters all the trees in this forest are? " Little X counted the number of trees in this forest-342. "I figured it out, I figured it out." Little x said happily, "2394 meters, because there are 342 trees in the forest." Just use the number of trees × the number of meters per tree = the total number of meters. " Chai Fu said, "You got it right." When it's over, it disappears.
Little X went through the mysterious forest and came to the country of mathematics. Xiao X gave the gift to O, the king of mathematics, thanking them for their concern. Later, Xiao X returned to China.
To successfully complete/execute a task
Years of war have exhausted the people of the alphabet countries, and the development of the country has come to an abrupt end. The king of the alphabet country heard that the digital country was rich and powerful, and sent a clever and capable little X to inquire.
When X received the order, he immediately rode to the digital country. After knowing this, the king of Digital Country 0 greeted X personally, and X explained his purpose. The king is very popular. He took X to visit and walked along the street. Flowers are dense and trees are shady. Let's calculate, a * * has 65,438+00 rows, and each row has 65,438+000 trees. Then they came to the granary and saw hay sheds piled up like mountains. There are five rows of hay sheds, 50 in each row, each row 1000 kg. Calculate a * * *, with x ÷ 50 = 5 x = 50 x = 250 hay sheds and x * *. Much more than our country. When you come to the camp again, call all the soldiers together. Each station has 65,438+0,000 lines and 800 lines. Calculate x, x ÷1000 = 800x =1000x = 800,000 soldiers. Wow! That's amazing. When I came to the hall, X asked 0, how did you make the country strong? "This ... you answer me a question first, and I'll tell you. The problem is that my army is 58 times that of the navy. When the army was 580,000, how many navies were there? Calculate X. X× 58 = 58 580,000 x = 580,000 ÷58 x = 1 10,000, navy 1 10,000 people.
"Well, I told you to protect your home first, so that others can't invade and a peaceful country can develop ..." Later, when X went back, he told Wang A truthfully, and Wang A said, "Yes, there is always war, and the people are in poverty. How can the country be rich and strong! Give me an order quickly, and the soldiers will cultivate themselves, protect their country and defend their country, and not invade other countries! " Suddenly, the whole country is celebrating.
X to digital country
X was entrusted by the letter king A to go to the digital country. When he left, X asked the king for a lot of money and set off.
Numeric countries are far from alphabetic countries. X has to cross two mountains and two rivers. Every time he crosses a mountain, he has to answer a question between the mountain and the river before he can move on.
X climbed a mountain. When he came to the intersection of the mountain and the river, a magical voice came over: "X, you can't leave until you answer me a question. My questions are as follows: 1, 6, 5, 10, 9, 14, 13, the last two. X thought for a moment and replied, "The last two, one filled in 18 and the other filled in 17. Because 1 and 6 are plus 5, and 6 and 5 are minus 1, then smooth according to this, and so on, and it will be fine. "
X successfully answered a question. Go on. When he came to the intersection of the second mountain and the second river, there came a magical voice: "X, you must answer me a question before you can go. My question is this: a number, plus 6 times 6 MINUS 6 divided by 6, equals 6. What number is this? " X thought for a moment and said, "This number is 1. Seen from the back, a number divided by 6 equals 6, and this number is 36. Just let it be. " X successfully answered another question and walked on. He walked and walked, and finally reached the digital kingdom. He came to the Digital Palace and met King No.0. X said, "Dear King No.0, hello, I'm X from the alphabet kingdom. Our king said that you work overtime every day, so let me give you a little gift. " With that, X opened a box full of money, and King No.0 immediately ordered the soldier numbered 1 to give all the money to his men. X saw it and thought that King No.0 was really worried about the country and the people! With such a king, how can people not go up and down Qi Xin? No wonder it can make the country rich and strong!
Little x made a scene in the digital kingdom
There is a digital kingdom beyond the mountain. There are kings, prime ministers and commanders in the digital kingdom. The king is fat, the prime minister is short-1,and the commander-in-chief is tall and thin.
Today is New Year's Day and the 188 1 birthday of King Zero.
When was King Zero born? He was born at 0: 00: 00 and 0: 00 of 1 AD+ 1 AD. Since it was a double happiness, all the officials in the kingdom came to the palace to congratulate them.
Inside and outside the palace gate were decorated with lanterns, and I saw Zero King sitting on the throne, with two lines of congratulatory messages neatly arranged outside the palace gate. The line is headed by the Prime Minister-1, followed by -2, -3, -4 ... they are shorter than each other; The other line is the military attache team headed by 1, followed by 2, 3, 4 ... they are taller than each other. Two lines of congratulations are long and endless.
Three shots were fired and the celebration began. Suddenly, from the throne of King Zero, a little black and round guy appeared. 1 The commander drew his sword, took a few steps and came forward and shouted, "Who dares to disturb the celebration?" The little guy answered slowly, "Why? You don't even know me? I am the famous little X. "
1 The commander asked, "What are you doing here?"
Little X said, "I'm here for the celebration. Please put me in the congratulations team. I want to watch the fun. "
1 The commander told King Zero that Little X would attend the celebration. King Zero gave X a contemptuous look and said, "Put you in the team, too? How is that possible! Our digital kingdom has always been famous for its tight organization, neat arrangement and orderly order. Look at this long line of congratulations outside the palace. Civil servants start with-1 prime minister, and each civil servant behind is smaller than the previous one 1. The military attache starts with the commander of 1, and each last one is bigger than the last one 1. There is not even an empty seat here. Where shall I put you? "
Little X pleaded again: "Good King! You see that I am so small, just add a wedge to me. "
King Zero shook his head and said, "No! You'd better get out of here quickly and don't delay our celebration. "
After listening to King Zero's words, Xiao X's face suddenly changed and he snapped, "What's the matter? If you don't agree to be polite to you, don't blame me for being rude. I want to make a big change in your order and let you know my strength. "
King Zero flew into a rage and shouted at the door of the palace, "Who will get me the little X?" But no one dares to fight.
King Zero screamed, "Whoever can catch little X, I will make him the queen!" " "I saw a number that looked like a tumbler coming in unhurriedly from the outside. It turned out to be 8 and 16.
Shu 8 and 16 bowed deeply to King Zero and said, "Your Majesty, in my opinion, it is impossible to catch Xiao X, so we can only outwit him." King Zero nodded and said, "Then try." Little X listened for a while and thought, "OK, OK, I want to see how you outsmart me."
Count 8 and 16 say to little x, let's go. Little X got between 8 and 16. Little X asked, Do you know what it is? Little x shook his head and said, "I still have an housekeeping skill to show." Come and see! " "It happened that the soldiers at the door 15 and 4 came. Little X got into the middle of 15 and 4 again and said, do you know what this is? The phenomenon happened, and two more soldiers entered the door, 16 and 3. This time, little X was stumped.
Little X was at a loss, so scared that he whistled and ran away from the throne.