Aunt kindly asked us, "Have you ever heard of black holes?" We all raised our hands in unison, because we all knew that the black hole would never come back. She told us: "There are many kinds of mathematical black holes. Learn the simplest first! What do you think? " "good!" We answered happily. Then, my aunt gave us a bunch of numbers at random. She told us how many even numbers there are in this column and how many odd numbers there are in this column. Then she wrote these two numbers on paper, finally calculated the sum of these two numbers, and arranged a new number in the order of even numbers, odd numbers and total numbers. In this order, we will eventually get the three numbers 123. She continued, "You can try if you don't believe me!" So, we gave it a try with great interest, and we really couldn't escape the three ordinary numbers 123! Then, my aunt asked us to ask a question to see if we could escape from the black hole 123. Everyone spoke enthusiastically. When it was Bao Haoyu's turn, he came up with a difficult problem, and we tried our best to figure it out. Later, I worked out the result with my calculator, but unexpectedly, it still didn't escape from the black hole 123.
At school, my aunt also told us about the 495 black hole and the 6 174 black hole. After we learned about mathematical black holes, menstruation praised us as scientists! Maybe someone in our class will become a world-famous scientist in the future!
We all listened to this math class with relish, and let us know that black holes exist not only in astronomy, but also in mathematics, and black holes in mathematics are also very interesting!