最近一段时间,我们又认识了长度单位家族中三名成员:千米、分米、毫米,再加上原来的两位:米和厘米,这下可热闹了,它们几个搞在一起,让我根本分不清它们之间的进率,因此常常把题目做错。为此,我苦恼极了。不过我发现同桌张天宇却总是能把这类题目做对,难道他有什么秘诀不成?“张天宇,你是如何记长度单位之间进率的?快教教我吧。”张天宇立刻跟我分享了他的办法:“我把学过的长度单位按照从 Recently, we have also met three members of a family of length units: km, decimeter, millimeter, plus the original two meters and centimeters, which can be fun, several of them engaged together, let I can not tell the difference between them, so I often make mistakes. To this end, I am distressed. But I found the same table Tianyu can always do this kind of problem, do not he have any secret? ”Zhang Tianyu, how do you remember the rate between units of length? Quick teach me.“ Zhang Tianyu immediately Shared with me his method: ”I have learned from the length of the unit from