A short story about solving problems with mathematical knowledge.

1. A short story about mathematical knowledge

About 1500 years ago, European mathematicians did not know how to use "0". They use Roman numerals. Roman numerals are symbols representing numbers, which are combined to represent different numbers according to certain rules. When using this number, the number "0" is not needed.

At that time, a scholar of the Roman Empire discovered the symbol "0" from Indian notation. He found it very convenient to use "0" for mathematical operation, and he was very happy. He also introduced the Indian method of "0" to everyone. After a while, it was known by the pope at that time. At that time, it was the Middle Ages in Europe. The power of the church was very strong, and the power of the pope far exceeded that of the emperor. The Pope was very angry. He rebuked that the sacred number was created by God, and there was no such monster as "0" in the number created by God. Anyone who wants to introduce now is blasphemous! So the Pope ordered the scholar to be arrested and tortured, and his ten fingers were tightly clamped with a clamp, so that his hand was disabled and he could no longer write with a pen. In this way, "0" was banned by the ignorant and cruel Pope.

However, although the use of "0" is forbidden, Roman mathematicians still use "0" secretly in mathematical research regardless of the ban, and still make a lot of mathematical contributions with "0". Later, "0" was finally widely used in Europe, but Roman numerals were gradually eliminated.

Do you want a math fairy tale?

2. Help me collect five examples of solving practical problems with mathematical knowledge.

For example, when a worker makes a circular cover with mortar, he only has a small stick (the length is equal to the radius of the required circle). Rotate the stick once with one end of the stick as the center, and the figure swept by the stick is a circle. From this point of view, I inspire students to define a circle from the perspective of motion: the graph obtained by rotating a line segment around its endpoint is a circle. Then inspire students to think: Why are these covers (including the manhole covers we see every day) usually round? For this problem, students generally think it is a good cover, but the fundamental reason for its good cover lies in the nature of the circle: the radius of the same circle is equal, the circle is a central symmetrical figure and an axisymmetric figure, and its symmetrical axis has countless lines, thus abstracting the theory from reality and explaining the reality with theory, which deepens students' understanding and application of knowledge.

In fact, there are still many problems that need to be solved by mathematics in the construction of this project, such as the relationship between the height of greenhouse vents and the incident angle of sunlight, the relationship between illumination and close planting, and the relationship between close planting and yield, which have given us profound enlightenment in mathematics teaching. Teaching should not be satisfied with solving book knowledge, but should go to life and solve practical problems with what you have learned, so that everyone can learn "useful mathematics" and cultivate students' ability to solve problems. That's all that matters.

Analysis: Because there are 12 months in a year, assuming that each student's birthday month is different, then only 12 is enough, and two other people's birthdays must be the same as one of the previous 12 people's birthdays, so at least two students in this group have birthdays in the same month.

Note: This example is a practical problem related to our life. When solving this problem, we use analytical methods, which is what we should learn in mathematics. It's not the same as the arithmetic calculation in primary school!

3. 10 Mathematical Story (shortest)

Where is the one yuan?

Three people stayed in a hotel, and the price per person per day was 10 yuan. Everyone paid 10 yuan, and the total was the boss 30 yuan. Later, the boss gave a discount of 5 yuan and asked the waiter to return it to them. As a result, the waiter embezzled 2 yuan, and each of the remaining 3 yuan returned 1 yuan, which means that each person spent 9 yuan's money. Three people spent a total of * * * 27 yuan, plus 2 yuan, a corrupt waiter, spent a total of * * * 29 yuan. Where did the dollar go?

Divide apples

There are five students in Xiaomi's family Xiaomi's father wants to entertain six children with apples, but there are only five apples at home. What shall we do? I have to cut the apple, but I can't cut it into pieces. Xiaomi's father wants each apple to be cut into three pieces at most. This has become another topic: divide five apples equally among six children, and each apple is not allowed to be cut into more than three pieces.

How did Xiaomi's father do it?

Ma Xiao Hu cooked chicken

During the Spring Festival, Xiao Mahu, a professional chicken farmer, stood in the yard, counted the total number of chickens, decided to stay and gave 1/2 to the nursing home. After he sent the chicken away, he listened to 323131335323631303231363533e4b893e5b19e3/kloc-0. So I counted the chickens inside and outside the room again, and there was nothing wrong, no more, no less, just 1/2 left. Little careless and strange. What's the problem? Do you know how many chickens Xiao Mahu counted in the yard? "This article is organized by the first model essay network, and the copyright belongs to the original author and the original source. 』

How many guests came one day and Xiao Lin was washing dishes at home. Xiao Qiang saw it and asked, "Why do you wash so many bowls?" "

We have guests at home. ""How many people came? " Kobayashi said, "I don't know. I only know that each of them uses a rice bowl, two people share a soup bowl, three people share a vegetable bowl, four people share a big wine bowl, and one * * uses 15 bowl. "Do you know how many guests are here?

I need three math knowledge, and the shorter the story, the better.

Pig ate some peaches and went to Huaguoshan to find Wukong. The Great Sage was not at home.

The little monkeys warmly entertained Bajie and picked 100 of the most delicious peaches in the mountains. Bajie said happily, "Let's eat together!" How to eat? Counting ***30 monkeys, Bajie found a branch and drew it on the ground, and listed the formula, 100÷30=3. .. 1 Bajie pointed to the top three and said generously, "Everyone can eat three pecans. Look, the rest 1 I ate it! " The little monkeys were very grateful to Bajie. They thanked him one by one, and then each took his share.

When Wukong came back, the little monkeys told Wukong how generous Bajie was today and why he only ate a pecan. Seeing Pig's arrangement, Wukong shouted, "What a fool! I'll find him! " Haha, do you know how many peaches Bajie ate? The origin of numbers Xiaoming is a child who likes to ask questions. One day, he became interested in the numbers 0-9: Why is it called "* * * numbers"? So he went to ask his mother: "Since 0-9 is called' * * * number', it must have been invented by * * * people, mom?" Mom shook her head and said, "* * * Numbers were actually invented by Indians.

About 1500 years ago, Indians used a special word to represent numbers. There are 10 words, and you can write both strokes. Later, these figures were introduced into * * *. * * * people think these numbers are simple and practical, so they are widely used in their own countries and spread to Europe.

In this way, it gradually became the number we use today. Because * * * people have played a great role in the spread of these numbers, people are used to calling them "* * * numbers". "

Xiao Ming heard this and said, "So that's it. Mom, can this be called' making a mistake'? " Mom smiled.

Children's Song Competition The animal school held a children's song competition, with the elephant teacher as the referee. The little monkey raised his hand first and began to recite: "I can calculate carry addition, and the digits can only be added if they are aligned."

The number of digits should be aligned with the number of digits. When the number of digits exceeds ten, the number of digits should be advanced to ten. Ten digits plus one plus one can count quickly and accurately. "

As soon as the little monkey finished speaking, the puppy began to recite again: "abdication and subtraction are not difficult, just align the numbers." If the single digits are small enough, ten people can borrow one.

If ten people return, one will be ten, and if they return, one will be missing. How to reduce ten digits, ten digits will be reduced again and again. "

Everyone applauded their wonderful performance. Teacher Elephant said, "Their nursery rhymes make us understand that both carry addition and abdication subtraction should win the championship, ok?" Everyone agrees and applauds them.

The ability to sum = Long ago, the kingdom of mathematics was chaotic. The 0-9 brothers not only dominate the kingdom, but also boast of their greatest skills.

The math angel was very angry when he saw this situation. He sent three little angels to the math kingdom to establish order and avoid chaos. Three little angels came to the kingdom of mathematics, and 0-9 brothers looked at them contemptuously.

Q: "What are you three doing in the kingdom of mathematics? You are not welcome! " = Laugh and say, "We are judges sent by angels to help you govern your country. I am an equal sign, and these two are' greater than sign' and' less than sign'. Whoever they speak to is greater. Whoever they point to is small. "

When the ten brothers heard that they were judges sent by angels, they obediently obeyed the command of sum =. Since then, the mathematical kingdom has a strict order, and no one will violate it.

Bear opens a shop Bear doesn't like studying, just wants to do business, so he opens a fruit shop next to the school. Rabbit and monkey are his classmates. They have agreed to teach this lazy guy who doesn't like school.

They came to bear's fruit shop. "How much are the peaches?" Asked the little monkey.

"The first basket is 6 yuan and 3 Jin, and the second basket is 6 yuan and 2 Jin." The bear replied.

The little monkey said, "If I take 5 kilograms from two baskets, I will pay you 12 yuan, right?" The bear nodded. "That I want it all. Since 5 kg is 12 yuan, then 60 kg is 12* 12= 144 yuan, right? " "Exactly, exactly."

Said the bear. So the little monkey bought all the peaches, paid the money and left happily with the little rabbit.

When I get home at night, the bear pays the bill, which is a loss anyway. The next day, the little monkey and the little rabbit found the little bear and told him the situation. They smiled and said, "It's all because you don't study well that we came to teach you a lesson." They replenished the little money to the bear.

Bear hung his head in shame, and since then, he has been very serious in class every day. The three of them became good friends.

One day, the Tang Priest told his disciples Wukong, Bajie and Friar Sand to go to Huaguoshan to pick peaches. Soon, the three disciples came back happily after picking peaches.

Tang Priest and his disciples asked: How many peaches did each of you pick? Bajie said with a silly smile, Master, let me test you. Each of us took the same amount of money. There are less than 65,438+000 peaches in my basket. If we count three peaches, there are 1 peach left in the end.

Do the math. How many did each of us choose? Friar Sand said mysteriously, Master, I will test you, too. If there are four peaches in my basket, there is 1 left in the end.

Do the math. How many did each of us choose? Wukong smiled and said, Master, I'll test you, too. If there are five peaches in my basket, there is 1 left in the end.

Do the math. How many shall we each choose? Tang Priest quickly said the number of peaches he had picked. Do you know how many peaches each of them picked? A young man came to see Mr. Liu and introduced himself: "My name is Yu Jiang. I'm taking a tour group to Hong Kong this time. I heard that your hotel has a comfortable environment and good service. We want to stay in your hotel. "

Mr. Liu quickly said enthusiastically, "Welcome, welcome. I wonder how many people are there in your group? " "People, well, it's a big group." Mr. Liu was overjoyed: it's great to have big groups and enterprises.

As a tour guide, Yu Jiang saw Mr. Liu's mind. He said slowly, "Sir, if you can count the number of people in our group, we will stay in your hotel." "Please go ahead."

Mr Liu said confidently. "If I divide my group into four groups, one more person, and then each group is divided into four, there will be one more person, and then four groups will be divided into four, there will be one more person, including me, of course. How many people are there at least? " "How much is a * *?" .

5. Solve problems in life with mathematical knowledge. A 400-word diary

On Sunday, my mother and I went out for a walk. In an alley, I smelled a strong smell of baked sweet potatoes. Smelling the fragrance, my stomach growled, "mom, let's buy a sweet potato to eat." I'm hungry. " I took my mother's hand and begged, "You can buy one, but …" "But what?" I quickly asked: "But I bought it and went home to calculate the volume of sweet potatoes before eating." "yes! Ok! " I readily promised.

When I got home, I had forgotten about calculating the volume of sweet potatoes, and I wanted to eat them when I picked them up. "Hey, how did you start eating? Didn't we agree to calculate the volume of sweet potatoes? It doesn't count if you can't talk! " "Ah?" I'm surprised. "Really?" "Of course!" Mom said, "Sweet potatoes must be measured before they can be eaten!" ""Hum! What's the big deal? Is it not the size of a sweet potato? Can you beat me? "I opened the math book, and there were only calculation methods of cuboids, cubes and cylinders in the book. And this sweet potato is an irregular three-dimensional figure, which can't be kneaded. How to calculate? I think hard with my chin cupped. At this moment, I saw a short story of a famous mathematician on my desk. I opened it and read my first short story with great interest. This story tells that Archimedes used equal product generation to transform the golden crown. I had a brainwave and thought, can't I also calculate the volume of sweet potato by equal product substitution? So, I took a cylindrical glass and measured it. Its bottom diameter was 6 cm. I poured 10 cm of water into the cup, and then completely submerged the sweet potato in the water. At this time, the water in the glass rose. I measured it again, and now the water is 15 cm, which means that the water in the cup has risen: 15- 10=5 (cm), and the volume of the rising water is the volume of the sweet potato, so it can be calculated that the volume of the sweet potato is: (6 ÷ 2) 2 * 3.

"mom! I figured it out! I figured it out! It's 14 1.3 cubic centimeter! I figured it out! I can eat sweet potatoes! " I trotted to my mother, "Oh? Calculated? " Mother put down her work and smiled at me. "Well, it's 14 1.3 cubic centimeters." I proudly said, "Then tell me how it was worked out?" Mom asked again. I told my mother the process of my experiment. My mother gave me a thumbs-up and praised me as a "little doctor in mathematics".

In fact, in life, many seemingly unattainable things can be obtained through equivalent product substitution. As long as everyone is willing to use their brains and loves to use their brains, there is no problem that can beat me.

6. Knowledge of mathematics, preferably short stories

When Gauss was in elementary school, once after the teacher taught addition, because the teacher wanted to have a rest, he came up with a topic for students to calculate. The title is: 1+2+3+.

..+97+98+99+ 100 = ? The teacher is thinking, now the children must start class! I used this as an excuse to go out, but Gauss stopped me! ! It turns out that Gauss has worked it out. Little friend, do you know how he did it? Gauss told everyone how he worked it out: add 1 to 100, add 100 to 1, and add two lines, that is 1+2+3+4+. ..+96+97+98+99+ 100 100+99+98+97+96+ 。

..+4+3+2+ 1 = 10 1+ 10 1+ 10 1+ 。 ... =' class1' >+10/+1+1+10 1 * * There are one hundred10/kloc-0 ...

The little monkeys warmly entertained Bajie and picked 100 of the most delicious peaches in the mountains. Bajie said happily, "Let's eat together!" How to eat? Counting ***30 monkeys, Bajie found a branch and drew it on the ground, and listed the formula, 100÷30=3. .. 1 Bajie pointed to the top three and said generously, "Everyone can eat three pecans. Look, the rest 1 I ate it! " The little monkeys were very grateful to Bajie. They thanked him one by one, and then each took his share.

When Wukong came back, the little monkeys told Wukong how generous Bajie was today and why he only ate a pecan. Seeing Pig's arrangement, Wukong shouted, "What a fool! I'll find him! " Haha, do you know how many peaches Bajie ate? The origin of numbers Xiaoming is a child who likes to ask questions. One day, he became interested in the numbers 0-9: Why is it called "* * * numbers"? So he went to ask his mother: "Since 0-9 is called' * * * number', it must have been invented by * * * people, mom?" Mom shook her head and said, "* * * Numbers were actually invented by Indians.

About 1500 years ago, Indians used a special word to represent numbers. There are 10 words, and you can write both strokes. Later, these figures were introduced into * * *. * * * people think these numbers are simple and practical, so they are widely used in their own countries and spread to Europe.

In this way, it gradually became the number we use today. Because * * * people have played a great role in the spread of these numbers, people are used to calling them "* * * numbers". "

Xiao Ming heard this and said, "So that's it. Mom, can this be called' making a mistake'? " Mom smiled.

Children's Song Competition The animal school held a children's song competition, with the elephant teacher as the referee. The little monkey raised his hand first and began to recite: "I can calculate carry addition, and the digits can only be added if they are aligned."

The number of digits should be aligned with the number of digits. When the number of digits exceeds ten, the number of digits should be advanced to ten. Ten digits plus one plus one can count quickly and accurately. "

As soon as the little monkey finished speaking, the puppy began to recite again: "abdication and subtraction are not difficult, just align the numbers." If the single digits are small enough, ten people can borrow one.

If ten people return, one will be ten, and if they return, one will be missing. How to reduce ten digits, ten digits will be reduced again and again. "

Everyone applauded their wonderful performance. Teacher Elephant said, "Their nursery rhymes make us understand that both carry addition and abdication subtraction should win the championship, ok?" Everyone agrees and applauds them.

A long time ago, the mathematics kingdom was in chaos. The 0-9 brothers not only dominate the kingdom, but also boast of their greatest skills.

The math angel was very angry when he saw this situation. He sent three little angels to the math kingdom to establish order and avoid chaos. Three little angels came to the kingdom of mathematics, and 0-9 brothers looked at them contemptuously.

Q: "What are you three doing in the kingdom of mathematics? You are not welcome! " He smiled and said, "We are judges sent by angels to help you govern your country. I am an equal sign, and these two are' greater than sign' and' less than sign'. Whoever they speak to is greater. Whoever they point to is small. "

When the ten brothers heard that they were judges sent by angels, they obeyed the orders of God and ... and from then on, the mathematics kingdom had a strict order, and no one would violate it.

One day, the Tang Priest told his disciples Wukong, Bajie and Friar Sand to go to Huaguoshan to pick peaches. Soon, the three disciples came back happily after picking peaches.

Tang Priest and his disciples asked: How many peaches did each of you pick? Bajie said with a silly smile, Master, let me test you. Each of us took the same amount of money. There are less than 65,438+000 peaches in my basket. If we count three peaches, there are 1 peach left in the end.

Do the math. How many did each of us choose? Friar Sand said mysteriously, Master, I will test you, too. If there are four peaches in my basket, there is 1 left in the end.

Do the math. How many did each of us choose? Wukong smiled and said, Master, I'll test you, too. If there are five peaches in my basket, there is 1 left in the end.

Do the math. How many shall we each choose? Tang Priest quickly said the number of peaches he had picked. Do you know how many peaches they each picked?

7. Math stories and problems

One day, the Tang Priest wanted to test the math level of three disciples, so he called them to him and said, "Now, disciples, I am writing three numbers on the ground. If you can read them accurately, I will pass them on to him. "

The Tang Priest first wrote: 23456. Pig Bajie couldn't wait to say, "Read this in two three four five six!" "The Tang Priest shook his head and said," Bajie, the pronunciation of multiple digits is regular.

From right to left, each number is one, ten, one hundred, one thousand and ten thousand. Read each number from left to right, and then add ten thousand, one thousand and one hundred and ten. Be careful not to read the last number as "one".

So, 23456 is pronounced as 23456. "The Tang Priest wrote again: 130567.

The Monkey King immediately said, "It's too easy, pronounced130,567." The Tang Priest shook his head again and said, "Pay special attention to zero. When there is a zero in the middle of a string of numbers, read only the zero and don't read the following numbers.

So this number should be read as 130567. "The third number is 120034.

Friar Sand thought for a moment and said, "It should be pronounced 120034." The Tang Priest sighed and said, "If there are several zeros in a string, just read one.

So this number should be read as 12034. Disciples, you are not very good at math. You have to keep trying. I can't send you the scriptures for the time being! Su Dongpo, a great poet in the Song Dynasty, went to Beijing with several schoolmates when he was young. When they arrived at the examination center, it was too late. The examiner said, "I made a couplet. If I get it right, I'll let you into the examination room." The examiner's first couplet is: I am alone in a boat, sitting with two or three students, crossing six beaches and seven bays with four oars and five sails, and it is already very late. After Su studied hard for the Five Classics and Four Books, I got in again and again. I must get a good grade today. Examiners and Su Dongpo both embedded ten numbers from one to ten in the couplets, which vividly described the hardships and assiduousness of the scholars. If the decimal point is wrong, it is necessary not only to be correct in mathematics learning, but also not to make mistakes in the specific problem solving process. An old woman living on a pension in Chicago, USA, went home after a minor operation in the hospital. Two weeks later, she received a bill from the hospital for $63,440. When she saw such a huge number, she couldn't help being surprised. She had a heart attack and fell to the ground dead. Later, someone checked with the hospital, and it turned out that the computer misplaced the decimal point, but in fact she only had to pay $63.44. A wrong decimal point actually killed a person. As Newton said, "in mathematics, even the smallest error can't be made." Century is the unit for calculating age, and a hundred years is a century. The start year and end year of the first century are 1 and 100 respectively. The common mistake is that some people regard the starting year as the year zero, which obviously does not conform to logic and our habits, because in general, the calculation of ordinal number begins with "1" instead of "1".

It is this misunderstanding that led to the misunderstanding that the year at the end of the century was 99 AD, which is why 1999 was wrongly considered as the year at the end of the twentieth century and the year 2000 was the year at the beginning of the twenty-first century. Because the AD count is ordinal, it should start with "1", and the first year of 2 1 century is 20065433. French mathematician Buffon invited many friends to his home and did an experiment. Buffon spread a big piece of white paper on the table, which was covered with parallel lines with equal distance. He also took out many small needles of equal length, the length of which was half that of parallel lines. Buffon said, "Please feel free to leave these small needles on this piece of white paper!" " The guests did as he said. Buffon's statistics show that everyone * * * throws 22 12 times, in which the small needle intersects the parallel line on the paper 704 times, and 2210 ≈ 704 ≈ 3.142.

Buffon said, "This number is an approximation of π. Every time you get an approximation of pi, the more times you throw it, the more accurate the approximation of pi is. "

This is the famous Buffon Experiment. 198 1 One day in summer, a math magician held a mental arithmetic competition in India.

The performer is a 37-year-old woman from India. Her name is Shagongtana. On that day, she will compete with an advanced electronic computer with amazing mental arithmetic ability.

The staff wrote a long list of 20/kloc-0 bits, asking to find the 23rd root of this number. As a result, it took Shagongtana only 50 seconds to report the correct answer to the audience.

In order to get the same answer, the computer must input 20,000 instructions, and then calculate, which takes much more time than Shagongtana. This anecdote caused a sensation in the world, and Shagongtana was called a "mathematical magician".

Hua, who worked until the last day, is from Jiangsu. He likes math since he was a child and is very clever. 1930, 19-year-old Hua went to Tsinghua University to study.

During his four years in Tsinghua, under the guidance of Professor Xiong Qinglai, Hua studied hard and published more than a dozen papers in succession. Later, he was sent to study in Britain and got a doctorate. He studied number theory deeply and got the famous Fahrenheit theorem.

He paid special attention to integrating theory with practice and traveled to more than 20 provinces, municipalities and autonomous regions to mobilize the masses to apply the optimization method to agricultural production. The reporter asked him in the interview: "What is your greatest wish?" Without thinking, he replied, "Work until the last day."

On the last day of working hard for science, he really fulfilled his promise. 265438+Seven Mathematical Problems in the 20th Century The Clay Institute of Mathematics in the United States announced the selection results of many mathematicians in Paris on May 24, 2000: Seven Millennium Mathematical Problems were awarded 1 million dollars each.

Since the publication of the "Millennium Prize", it has had a strong response in the field of mathematics. These problems are all about the basic theory of mathematics, but the solution of these problems will greatly promote the development and application of mathematical theory.

Understanding and studying the "Millennium Prize" has become a hot spot in mathematics. Mathematicians in many countries are organizing joint research.

It can be expected that the "Millennium Prize Problem" will change the historical process of mathematics development in the new century.

8. I need three math knowledge and stories (the shorter the better)

Say four, very short:

When Gauss was in elementary school, the teacher asked the students to calculate1+2+3+...+98+99+100. The teacher himself was doing the math honestly. Gauss finished the calculation quickly and told him that the method was to add the first and last numbers and multiply them by 50, which surprised the teacher.

In the 6th century AD, Herbers, a scholar of Pythagoras School, discovered this irrational number when he was studying the diagonal length of a square with a length of 1. The irrational number was not recognized by Pythagoras school and was submerged in the sea, which caused the first crisis in the history of mathematics, that is, the irrational number was not recognized and prevented its spread.

Abel, a famous mathematician, once wrote a letter to his teacher, Homebo. The date of the letter was

The number of cube roots involved in the formula is 6064 1438+09, which is 65438+33.30089.60686666666

365*0.5908275=2 15.652 (day) ≈2 16, which is a normal year, so it should be 1823 August 4th.

Hua had a visit abroad. On the plane, a passenger next to him was reading a math magazine. The above question is: what is the root number 593 19 of the third degree? Hua blurted out that it was 39 after reading it, which surprised everyone. (omitting the algorithm he explained)

9. Mathematical stories, using mathematical knowledge to solve problems in life.

One Sunday morning, my parents and I watched TV at home. There was a basketball game on TV.

After watching it for a while, my father suddenly said to me, "Qiqi, let me test you a math problem to see if you can?" I opened my mouth and said, "OK, no problem." Dad thought for a moment and said, "suppose the red team throws eight balls a minute and the blue team throws six balls a minute." After eight minutes of pitching together, the blue team improved its hit rate 10 ball per minute, while the red team only threw six balls per minute because of physical exhaustion. How many minutes later, the red team and the blue team threw the same number? " I thought for a while, but it took him a long time to figure it out.

As time went by, I really couldn't think of it, so I had to say shyly, "I can't do it without a draft." I know that even if I have a draft, I may not be able to do it.

At this moment, my mother said to me: "It turns out that the red team throws two more shots a minute than the blue team, and one * * * throws eight minutes, which is 8*2= 16 (one); Later, the blue team overtook the red team and threw four more balls per minute. How many minutes does it take to throw 16 balls? 16÷4=4 (minutes), it takes 4 minutes to catch up. " I said, "It's so simple! Why didn't I think of that? " Dad smiled and said, "Is it simple? This shows that there is something wrong with your thinking.

In real life, we should be good at discovering things and finding out their laws, then you will feel that mathematics in life is much more interesting than that in class. Through this incident, I found that mathematics in life is indeed everywhere, everywhere in life and study.

Since then, I like math even more.