高斯的“萝卜灯”

• 作 者: 郭星平
• 出 处: 读与写(小学中高年级版)
• 发表日期: 2017年04期
• 关键词: 高斯 萝卜 数学题 数学家 水管 就这样 大家 一间 一根 点油

有一次,老师给一群小学生出了一道数学题:1+2+3+……+98+99+100=?大家都埋头飞快地算起来。在不少同学刚开了头的时候,一个7岁的小孩高斯给出了答案:5050。高斯是这样算的:1+100=101,2+99=101,3+98=101……从1加到100有50组这样的数,所以50×101=5050。高斯是19世纪德国伟大的数学家。他从小就是在困苦的环境中锻炼和成长起来的。他的父亲是一个装水管的工人,母亲是石匠的女儿,都没有什么文化。

Once, the teacher gave a group of pupils a math problem: 1 + 2 + 3 + ... + 98 + 99 + 100 =? When many students just started, Gaussian, a seven-year-old boy, gave the answer: 5050. Gauss is this: 1 + 100 = 101,2 + 99 = 101,3 + 98 = 101 ... From 1 to 100 have 50 such groups, so 50 × 101 = 5050. Gaussian is a great mathematician in Germany in the 19th century. He grew up in a difficult environment from an early age. His father was a man with a water pipe and his mother was a stonemason’s daughter, all of whom had no culture.