小学数学中的某些应用题,如果能灵巧地运用单位“1”往往使解题简单、明了。兹分类例析如次。一、含“一个数的几分之几”的应用题。1.一个应用题,如果具有“一个数的几分之几”的特征,则可考虑设适当的量为单位“1”,将其它数量用相应的分数表示,最后按一般应用题的解题方法分析,列式求解。例1 有大小两只木船,大船可以载运 Some elementary mathematics problems, if the clever use of units “1” often make the problem simple and clear. It is classified as follows. First, with “a few of a few” application questions. 1. An application question, if it has a “fraction of a number,” may consider setting the appropriate quantity as a unit of “1”, the other numbers with the corresponding scores, and finally solving the general application questions Methodological Analysis, Column Solving. Example 1 is the size of two wooden boats, ships can be carried