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同学们都知道,常用的面积单位有:平万里米、平万分米和平万米,相邻两个单位间的进率都是100。可是同学们学习了公顷和平方千米后,发现这个规律被打乱了,平方米与公顷的进率是10000,平方米与平方千米的进率是1000000,而公顷与平方千米的进率是100,这到底是怎么一回事呢?这是不是无规律可循了呢?下面,俞老师就给大家讲一讲其中的秘密。
Students all know that the commonly used area units are: flat miles, flat meters and tens of thousands of meters, the rate of entry between two adjacent units are 100. However, after learning about hectares and square kilometers, the students found that this law was disrupted. The rate of square meters and hectares was 10,000, the rate of square meters and square kilometers was 1,000,000, and that of hectares and square kilometers Rate is 100, in the end is how the same thing? This is not without rules follow? Here, Yu teacher to tell you about one of the secrets.