On my birthday, my father gave me a birthday present: Ma Xiaotiao plays math. Dad said, "This book can not only help you increase your knowledge of mathematics, but also help you get rid of your bad habits in mathematics." "Thank you, Dad!" As soon as I finished writing, I opened the book cheerfully and began to read curiously.
This book is about Ma Xiaotiao using mathematics to solve various puzzles and help others. I also want to learn math well, become a member of Ma Xiaotiao's team, and help more people. You may ask what's the use of learning math well?
You listen to me slowly. One day, Ma Xiaotiao was playing in the street with a group of top mathematicians. They saw a young man setting up a stall. There are four red cards on the ground. The requirement is to draw twice. If the total number exceeds 4,500, they will win 5 yuan and pay 2 yuan for each card.
Ma Xiaotiao watched it for a while, and then he had a brainwave and said to everyone, "2, 3, 4, 5 * * * can add up to 24 four digits! The probability of winning more than 4500 is only 8/24. Your chances of winning are small, but the chances of the stall owner winning are much greater. He promised to win, and the onlookers dispersed in a hubbub at Ma Xiaotiao's words.
I used this story to tell my mother that the probability of winning the 7-digit lottery is one in ten million, which is too low. Take a chance, don't buy more, just buy one.
From this, I think that mathematics is everywhere in our life, just like air, it is always around us, and we can feel its existence all the time. The key is whether you have mastered it or not, and whether you can apply what you have learned.
In this summer vacation, I read a book called "Ma Xiaotiao Plays Mathematics", from which I learned a lot of mathematical knowledge and many mathematical problems in my life.
For example, the character Tang Fei in the book wants to be as good at solving crimes as Sherlock Holmes. He decided to look for opportunities outside, so he invited Mao Chao and Zhang Da to go with him. When they were walking in the park, they saw a car accidentally hit an old man and then turned around and drove away.
Tang Fei and others hurried over and helped grandpa up. Tang Fei thought, this is a good opportunity, but the car runs too fast and I don't know the license plate number of the car.
Zhang Da said: "I remember the license plate number, which is four digits, and the hundred digits are three more than the thousand digits." Mao Chao went on to say, "The number of ten is more than twice that of hundred, 1, and the number of digits is less than ten." Tang Fei thought hard and finally came up with the license plate number, which is 1497. Finally, the car was arrested by the police.
From this incident, I know that there are some small things in life that we should observe and think about.