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记得在小学里,学过了小数与分数知识后,数学教师李老师曾提出一个有趣的问题:已知“快”、“乐”两个汉字分别代表两个不同的小数(或分数),请您设法找出这两个数来,使得等式:“快+乐~2=快~2+乐”(*)成立。比如:0.1+0.9~2=0.91,0.1~2+0.9=0.91,即0.1+0.9~2=0.1~2+0.9;又如2/3+(1/3)~2=(2/3)~2+1/3,…等等,于是大家都动手计算,经过试算凑数,又以找到一些等式:1/4+(3/4)~2=
I remember in primary school, after learning the knowledge of fractional and fractional mathematics, teacher Li once raised an interesting question: the two Chinese characters known as “fast” and “music” represent two different decimal places (or Score), please try to find these two numbers, making the equation: “fast + music ~ 2 = fast ~ 2 + music ” (*) established. For example, 0.1 + 0.9-2 = 0.91,0.1-2 + 0.9 = 0.91, that is, 0.1 + 0.9-2 = 0.1-2 + 0.9; ~ 2 + 1/3, ... and so on, so we all do calculations, after trial and error to find the number of co-ordinates: 1/4 + (3/4) ~ 2 =