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This semester, I finished reading Li Yupei's series of mathematical stories. This set of books taught me a lot of knowledge.
Professor Li Yupei turned boring mathematical knowledge into simple and vivid language. Let me know a lot of mathematical knowledge that I didn't know before, such as: how to find the least common multiple of two numbers; How to find the maximum tolerance of two numbers, and the problem of chickens and rabbits in the same cage, the problem of sum and difference, and the problem of multiples.
We also know that 6 is the smallest perfect number, because it can be divisible by three consecutive natural numbers 1, 2, 3, and the sum of these three numbers is just equal to 6. This number is essentially perfect, so it is called a perfect number. ...
After reading this set of books, I also met Pythagoras, a great mathematician, who found the number of blind dates, namely 284 and 220. Why is it called a blind date?
Because the true factor of 284 is 1, 2,4,7 1, 142, the true factor of the sum of these numbers is1,2,4,5, 10,/kloc. Therefore, you have me and I have you, love each other and never fight!
This set of books is of great help to me. In this year's final exam, there is such a topic on the math test paper: there is a bucket of water, half of which is poured out for the first time, then 20 kilograms, the remaining half for the second time, and 150 kilograms for the third time, leaving 65 kilograms. There are several kilograms of water in the bucket.
This is a typical reduction problem. I encountered a similar problem in Professor Li Yupei's book, so I solved it at once: 65+150 = 215 (kg) 215x2 = 430 (kg) 430-20 = 410 (kg). If I don't read this set of books, I may spend more time and energy on this topic.
Reading is such an important thing. We can learn a lot from books. I love reading!