400 words of mathematical stories in life.

I mathematical stories in life, 7 articles of not less than 400 words,

This afternoon, my mother and I went shopping in the supermarket.

When we finished buying what we needed, we were about to leave. I saw sausages on the shelf, so I asked my mother to buy some sausages, and my mother agreed. But just after a few steps, I saw a package with the same brand and weight on the shelf, which contained 10 pieces at 4.30 yuan each. Do you want to buy a pack or a slice? I hesitated. Suddenly, my mind turned and I understood. Just compare and see which one is cost-effective. So I started to calculate: if I buy 10 pieces in retail, each piece costs 40 cents, which is equal to 4 yuan, and the whole package costs 4.30 yuan, which is 3 cents more, so I decided to buy it in bulk. I told my mother the process of my calculation, and my mother praised me for my love of brains. Also, I saw a puzzling math problem tonight. The topic is: 37 students want to cross the river. There is an empty boat at the ferry that can only take five people. How many times must they cross the river with this boat at least?

Careless people often ignore the "empty boat", that is, forget to have a gondola, so they can only take four people at a time. In this way, 37 people subtract one rowing classmate, leaving 36 students, 36 divided by 4 equals 9, and the classmate who worked as a boatman on the other side for the last time also landed 4, so it takes at least 9 trips.

ⅱ. Model essay on mathematical short stories in life

1, Mathematical Story-Change

A customer of a crutch shop bought a crutch made in 30 yuan. He took out a ticket for 50 yuan and asked for change.

Just as there was no change in the store, the shopkeeper went to the neighbor's house to change the ticket for 50 yuan and gave the customer 20 yuan's change.

Just after the customer left, the neighbors came running in a panic and said that this ticket for 50 yuan was fake. The shopkeeper had to compensate his neighbor 50 yuan. Then I went out to chase the customer, caught him and said, "You liar, I paid 50 yuan, neighbor, and I gave you 20 yuan. You took a crutch, and you have to compensate me 100 yuan. "

The customer said, "The cost of a walking stick is 30 Yuan You left when your neighbor gave you change, so I only took your 70 yuan."

Please calculate, how much is the real loss of the rattan shop? I would like to add here that the cost of crutches is 20 yuan. If this customer succeeds, how much will * * * cheat?

2. Story: The monkey catches the hat.

A group of monkeys are playing by the well. A gust of wind blew a monkey's hat into the well. He called 18' s friends and fished for his hats one by one from the pine trees by the well. Four monkeys don't climb trees, so they go for hats. Q: How many monkeys got their hats from the well under the tree?

3. Story: When did the snail climb the well?

A snail accidentally fell into a dry well, and it lay down at the bottom of the well and began to cry. A toad came over and said angrily to the snail, "Stop crying, little brother, it's no use crying. This shaft wall is high and slippery, so you can only live here if you fall here. " I have lived here for many years. The snail looked at the old and ugly toad and thought, "What a beautiful world outside the well! I can never live in a dark and cold well like it. " The snail said to the toad, "Uncle toad, I can't live here. I have to climb out. How deep is this well? " "Ha ha ha ..... it's a joke, this well 10 meters deep, you are so young. How can such a heavy shell climb out? " "I am not afraid of suffering, not afraid of being tired. I can always climb out after a while every day! " The next day, the snail was full and began to climb along the wall. It keeps crawling and crawling. At night, it finally climbed 5 meters. The snail was very happy and thought, "At this rate, I can climb out tomorrow night." Thinking about it, I fell asleep unconsciously. In the morning, the snail was awakened by a purr. At first glance, it turned out that Uncle Tu was still sleeping. He was surprised: "Why am I so close to the bottom of the well?" It turned out that this snail fell asleep and slipped down 4 meters from the well wall. The snail sighed, gritted his teeth and began to climb again. At night, it climbed up another 5 meters, but at night, the snail fell down another 4 meters. In this way, it climbed, climbed and slipped, and finally the strong snail climbed onto the well platform. Clever boy, can you guess how many days it took the snail to climb the drilling platform?

Three. Mathematical stories in life

Animal mathematics

Meteorologist Lorenz put forward an article entitled "Can butterflies flap their wings to cause tornadoes in taxonomic groups?" ? This paper discusses that if the initial condition of a system is a little worse, its result will be very unstable. He called this phenomenon "the butterfly effect". Just like we roll the dice twice, no matter how deliberately we roll, the physical phenomena and points thrown twice are not necessarily the same. Why did Lorenz write this paper?

This story happened in the winter of 196 1 2008. He operated the meteorological computer in the office as usual. Usually, he only needs to input meteorological data such as temperature, humidity and air pressure, and the computer will calculate the possible meteorological data at the next moment according to the built-in three differential equations, thus simulating the meteorological change map.

On this day, Lorenz wanted to know more about the subsequent changes of a record. He re-entered the meteorological data at a certain moment into the computer, so that the computer could calculate more subsequent results. At that time, the speed of computer processing data was not fast enough, so he had time to have a cup of coffee and chat with his friends for a while before the results came out. An hour later, the result came out, but he was dumbfounded. Compared with the original information, the original data is similar, and the later data is more different, just like two different pieces of information. The problem is not the computer, but the data he entered is 0.0005438+027. These subtle differences make a world of difference. So it is impossible to accurately predict the weather for a long time.

References:

Cao Cao's Gourd (Volume II) —— Yuan Zhe Science Education Foundation

2. The mathematical genius of animals

Honeycomb is a strictly hexagonal cylinder, with a flat hexagonal opening at one end and a closed hexagonal diamond bottom at the other end, which is composed of three identical diamonds. The rhombic obtuse angle of the chassis is 109 degrees 28 minutes, and all acute angles are 70 degrees 32 minutes, which is both firm and material-saving. The honeycomb wall thickness is 0.073 mm, and the error is very small.

Red-crowned cranes always move in groups, forming a "human" shape. The angle of the herringbone is 1 10 degrees. More accurate calculation also shows that half the angle of the herringbone-that is, the angle between each side and the direction of the crane group is 54 degrees, 44 minutes and 8 seconds! And the angle of diamond crystal is exactly 54 degrees, 44 minutes and 8 seconds! Is it a coincidence or some "tacit understanding" of nature?

The spider's "gossip" net is a complex and beautiful octagonal geometric pattern, and it is difficult for people to draw a symmetrical pattern similar to a spider's net even with the compass of a ruler.

In winter, when a cat sleeps, it always hugs its body into a ball. There is also mathematics in it, because the shape of the ball minimizes the surface area of the body, so it emits the least heat.

The real "genius" of mathematics is coral. Coral writes a "calendar" on its body, and "draws" 365 stripes on its wall every year, apparently one a day. Strangely, paleontologists found that corals 350 million years ago "painted" 400 watercolors every year. Astronomers tell us that at that time, the earth only had 2 1.9 hours a day, not 365 days a year, but 400 days. (Life Times)

Ⅳ An essay about mathematics in life should be less than 400 words.

Nice weather today! My mother and I are going.

Shopping in Jiasheng Square opposite the community.

I came to Xinhe supermarket in Jiasheng Square, and my mother wanted to buy it.

A bottle of detergent, so we went to the detergent.

Area. At this moment, my mother said to me, "I want to buy it now."

A bottle of citrus cleaner. There are different weights here.

Test you which is the most affordable. I will buy the most affordable one.

Kindness "I thought to myself," What's the difficulty? Let me have a look.

You will know. I swept over and ruled out a lot.

Bottles. There are only two bottles left.

I thought for a moment, looked at it carefully and found that

Although these two bottles of detergent are about the same size, the packaging

The weight written on the wrapping paper is different: one said

1.5 kg; The other said 1.3 kg. And their

Price 12 yuan, of course 1.4 kg bottle.

It's better this way. I said to my mother, "This bottle is the cheapest.

I want this bottle. "At this time, my mother took another bottle of washed.

Jie Jing smiled and said to me, "This bottle is 1.5 kg.

12.9 yuan, this bottle is the cheapest. "I have a look carefully, originally.

It's a super special price when it comes, alas! Miscalculation.

Life is full of mathematics, if you are not careful.

There will be mistakes, so we must learn math well.

Ⅳ Mathematical stories in life. Short!

1. Once upon a time, there was a herder who had an unfinished business when he died. He just wanted to give 1 17 sheep to his three sons, so he made a will: "Give it to the third 1/2, the second 1/3, and the boss/kloc-. The clever neighbor took one of his big and fat sheep to share with them. Plus this sheep, the old one got nine, the second one got six, and the boss got two. After the three brothers took their sheep away, the neighbors happily took their big and fat sheep home.

2. Easy time: Burmese farmers divide chickens for the king.

There is a poor farmer in Myanmar who hopes to get rich one day. One day, he presented a rooster to the king.

The king smiled and said, "A rooster is a trivial gift to me. There are six people in my family: me, the queen, my two sons and two daughters. How to divide this rooster? "

The farmer cut off the head of the chicken and presented it to the king, saying, "Your Majesty is the head of state. Please accept this generous gift of the head of the chicken." Then he cut the meat off the chicken's back and said, "This is for the queen-the queen bears the burden of the whole family." He cut off two chicken feet and said, "These are only for two princes. They will follow in your footsteps and ascend to the throne of the ruler. "

Then he cut off two wings and said, "Let the two princesses get one wing each, because when they get married one day, they will fly away with her husband. The rest belongs to me, because I am your majesty's guest, and the host has the obligation to entertain the guests with the best food. "

The king was very satisfied with the farmer's witty answer and gave him a lot of gold, silver and precious stones. A greedy man, after learning the story of the farmer getting rich, came to the palace with five cocks and said to the king, "I offer five cocks to pay my respects to your majesty."

The king saw the man's purpose at a glance and said, "I'm happy to accept your five cocks, but there are six people in my family." If you can share them with us fairly and reasonably, I will reward you greatly. " Greedy men don't know how to distribute. He regretted that he should bring six cocks instead of five.

The king sent for the farmer to share.

The farmer said calmly, "Your Majesty, this is easy to handle: one rooster is dedicated to your Majesty and Queen, the other one is dedicated to two princes, and the third one belongs to two princesses. The remaining two cocks are my own, because I am your majesty's guest. This is the only reasonable way to allocate roosters, because your majesty, the queen and another rooster add up to three, your majesty's two princes and a rooster add up to three, your majesty's two princesses and a rooster add up to three, and I and the remaining two roosters add up to three. " The king was very satisfied. He rewarded the farmer with two cocks and gave him a large reward. But greedy people return empty-handed and disappointed.

ⅵ Find a 400-word mathematical composition in life.

Mathematics in life

It is sunny today. I go shopping in the supermarket. I saw a lot of things as soon as I entered. So I tried my best to go shopping, and soon my basket was full, so I asked my father, "Can you count the things here?" Dad touched his head. Who can work all this out at once? I said I could. I soon got tired of counting heads. Dad thought of a good way to find the cashier and ask him to help us.

I went to the cashier and said to my aunt, "can you help me calculate?" It is too difficult for us to calculate with our mouths. Please help us find out. After a while, I repeatedly praised and said, "Good, that's amazing. I asked my aunt how you did it. My aunt said, "It's not difficult for me to do such a small thing. I count by mobile phone. I said I was stupid. I didn't expect this. We packed our things and left. I've always wondered why my aunt knew all this. I don't know how my aunt came up with this and I didn't.

When I got home, I realized that there is mathematics in life, just like what happened today, there are things about mathematics. For example, many things can't be calculated clearly, so you can use a calculator. If you don't have a calculator, you can also use something like a mobile phone to calculate these numbers. Isn't this a solution? Solving everything in mathematics depends on the brain.

Therefore, life is inseparable from mathematics. When you encounter difficulties in mathematical calculation, use your brain to find a way.

ⅶ Mathematical Stories in Life

In the evening, I read a difficult problem in the Olympiad Book: the number of apple trees in the orchard is three times that of pear trees. Master Lao Wang fertilizes 50 apple trees and 20 pear trees every day. A few days later, all the pear trees were fertilized, but 80 apple trees were not fertilized. Excuse me: How many apple trees and pear trees are there in the orchard?

I am not intimidated by this question, but it can stimulate my interest. I think the apple tree is three times as big as the pear tree. If two kinds of trees are to be fertilized on the same day, Master Lao Wang will fertilize "20×3" apple trees and 20 pear trees every day. In fact, he only fertilizes 50 apple trees every day, which is 10, and the last 80 trees. Therefore, Master Lao Wang has been fertilizing for 8 days. 20 pear trees a day, 8 days is 160 pear trees. According to the first condition, there are 480 apple trees. This is to solve the problem with the idea of hypothesis, so I think the hypothesis method is really a good way to solve the problem.

ⅷ mathematician's short story, 400 words

When Hua was in primary school, when a teacher introduced the school to a new teacher, he said that the students in this school were all poor children and most of them were idiots ... This deeply hurt Hua's heart and he was determined to repay the teacher with excellent results.

One day, the math teacher gave us an interesting question: "I don't know how many things there are." Two of the three plots remain, three of the five plots remain, and two of the seven plots remain. How many things are there? "

The whole class looked at each other, unable to answer. Only Hua stood up and said, "Teacher, I know it is' 23'." The whole class was shocked and the teacher nodded in praise. From then on, he fell in love with math class.

When he was studying, his father's shop business was getting worse and worse, so he had to drop out of school to look at the counter. He began to teach himself, using an algebra book, a geometry book and a calculus book, with only 50 pages left. I don't have time during the day, and I keep a small oil lamp to calculate repeatedly at night. His father called him a "bookworm" and forced him to burn books several times, but his neighbors advised him to do business well.

Unfortunately, he suffered from terrible typhoid fever again, and the doctor shook his head and sighed, asking his family to prepare a "funeral" for him. He challenged death, struggled to work in the field, and his left leg was disabled. Undaunted, he exercised with crutches and endured pain. After practicing enough, he went to a middle school to do chores for the teacher, fetch water and sharpen pencils. Even so, he didn't give up self-study.

Soon after working in middle school, he began to send mathematical papers to newspapers and magazines, and he never gave up after being rejected many times. Later, he published the article "Why can't the solution of Su Jiaju's algebraic quintic equation be established?", which was appreciated by Xiong Qinglai, a master of mathematics, and was soon introduced to Tsinghua campus.

(8) Extended reading of 400 words of mathematical stories in life.

The growth process of China

19101012 was born in Jintan District, Changzhou City, Jiangsu Province. When he was young, he liked to think. Because he was too absorbed in thinking, he was often nicknamed "Luo bookworm" by his companions. 1922, 12 years old, after graduating from Renmai Primary School in the county, entered Jintan County Junior High School. Teacher Wang Weike discovered his mathematical talent and tried his best to cultivate it.

1925, studied in Shanghai China Vocational School after graduating from junior high school. I dropped out of school because I couldn't afford the tuition and went home to help my father manage the grocery store, so I only had a junior high school diploma all my life. Since then, he has taught himself all the math courses in high school and junior college in five years.

/kloc-in the autumn of 0/927, he married Wu. /kloc-in the winter of 0/929, he was unfortunately infected with typhoid fever, leaving his left leg disabled for life. He had to walk on crutches. From 65438 to 0929, Hua was employed as a clerk in Jintan Middle School and began to publish papers in Shanghai Science and other magazines.

1in the spring of 930, Hua published "Why the solution of Su Jiaju's algebraic quintic equation can't be established" in Shanghai Science magazine, which caused a sensation in the mathematical field. In the same year, Xiong Qinglai, the head of the Department of Mathematics in Tsinghua University, broke away from convention after learning about Hua's self-study experience and mathematical talent, and asked Hua to work as a librarian in Tsinghua University Library.

193 1 year, teaching assistant, Department of Mathematics, Tsinghua University. He taught himself English, French, German and Japanese, and published three papers in foreign magazines. 1933, promoted to teaching assistant. /kloc-0 was promoted as a lecturer in September, 934.

ⅸ Mathematics and composition in life. 400 to 450 words. ..

Mathematics in life. 400 words.

Air is everywhere and tasteless, but we can't live without it. The same is true of mathematics. The great mathematician Hua said: "The universe is big, the particles are small, the rockets are clever, the chemistry is clever, the earth is convenient, the daily life is complicated, and mathematics is everywhere." When we were born, mathematics surrounded us. Full moon, one hundred days, One-year-old .................................................................................................................................................................... began to receive systematic mathematics education when he grew up, learning the operations of number, addition, subtraction, multiplication and division.

When buying food, giving money for money is math; When paper-cutting, the size and area of paper are mathematics; When eating, it is math to distribute food evenly to everyone. I remember the first time when I went to the vegetable market alone to buy food, I carefully calculated the accounts while picking the dishes that my parents and I loved, and finally I didn't miscalculate a sum of money. And the first time I went to the supermarket, I was very careful and saved a lot of food and daily necessities.

Using mathematics, some troubles can always be simplified and solved. When learning chess, how to express playing chess? After you mark the lines with numbers on the chessboard, you can completely describe a chess game with such a simple chess manual as "running two draws and five draws" and "catching three draws and four draws". It is because of the chess score that blind chess is produced.

Mathematics is like a buried treasure, which needs us to dig slowly. To learn mathematics well, we must be rigorous and practical and have the courage to try. In my study, whenever I encounter difficulties, I will dig out hidden conditions from the topic, such as the concepts of year, month and time between Japan and China, and the sum of the angles of the triangle, so as to find a solution. When I learn to use it, I will be pleasantly surprised to find that I have mastered another skill. I can't wait to explore the next puzzle and solve it.

Mathematics is everywhere all the time. We use mathematics in our life, which provides great convenience for our life. The teacher linked mathematics with work, which ensured them to finish their work smoothly. Scientists have combined mathematics with science and made great contributions to the improvement of China's scientific and technological level.

Mathematics, like air, has no taste, but it is an indispensable existence in our study, life, work and scientific and technological development.

ⅹ The composition of Mathematics in Life is about 400 words. Which eldest brother is in a hurry to help me?

Mathematics in life

Today, I saw a lot of people donating money to people who didn't go to school on TV, remembering that there are about 65.438+0.3 billion people in China. If everyone saves 654.38+0 cents every day, then in this case, the national savings will be 6.5438+0.3 million yuan, and everyone will spend more than 6.5438+0.0 million yuan from primary school to university. According to this calculation, you can earn 654.38. If I had so much money, I would share it with the children!

It suddenly occurred to me that many hands make light work, but it also has disadvantages, right? Because if everyone wastes 65.438+0.3 billion more water every day, what a shame!

I did a small experiment: I dropped 1000 drops of water under the tap, weighing 200 grams, and I began to calculate:/kloc-0 130000000 divided by 1000 multiplied by 200 equals 26000000000 grams, and then 260000000 tons of water equals 260 years. I went to ask my parents, "1 ton of water can generate 100 kwh?" I thought about it and calculated that 260 tons of water can generate 26,000 kwh of electricity.

Whoa, whoa! I was shocked for five minutes. 260 tons of water can do so much! Therefore, from now on, all of us should save water and not waste a drop of water, and form a good habit of saving.

I believe that there is mathematics everywhere in life, and mathematics is used everywhere. As long as you are willing to learn mathematics, you can feel the happiness of mathematical thinking even in the game! ! !