Our math teacher is both humorous and serious.
Recalling last semester, we had a particularly interesting math class in our class.
As soon as the teacher entered the classroom, he smiled and asked the students, "Have you ever played the math game of grabbing fifteen?" Wang Pengyu and I raised our hands first. The teacher asked us to show you first. I said, "1." He said, "2." ``````` I said, "1 1." "I'm going to lose." I said it again. . Unexpectedly, Wang Pengyu said, "12, 13." I said, "14, 15." The teacher announced that I was the final winner.
The teacher said on the platform, "Now the students have all heard the speeches of the two students just now. The method of this game is: everyone can only say two numbers at most, and whoever says 15 first wins. Let the students play the game again between adjacent students. "
Xian Wen and I are thinking while playing games. Is there another game? I started thinking. Slowly, I recall that when I was studying Olympic Mathematics in the third grade, my teacher taught us this game: draw fifteen circles first, then pick up the eraser, and everyone will wipe it down in turn, at most two, to see who can finish it first.
After repeated thinking, I have come to the secret of winning the Tenth Five-Year Plan: you must let others speak first. No matter what numbers others say, you must say these important numbers: 3, 6, 9, 12, 15. When you talk about these numbers, you are the winner of the fifteenth. I think this math class is very interesting, because it not only teaches us a new math game, but also gives me the secret of winning the Tenth Five-Year Plan, so I think it is very interesting and unforgettable.