理解掌握数量之间的对应关系,是解答分数(百分数)应用题的重要途径之一。学生熟练地掌握了这种对应关系,就初步具备了独立分析、解答分数(百分数)应用题的能力。一、区别具体的数量和它对应的分率。先看下面的例子:1.一段花布长12尺,做衣服用去3/4,用去多少尺?12×(3/4)=9(尺),答:用去9尺。 Understanding the correspondence between mastership is one of the important ways to answer scores (percentages) of applied questions. Students skilled mastery of this correspondence, they initially have an independent analysis, answer scores (%) the ability to apply the question. First, the difference between the specific number and its corresponding fraction. Take a look at the following example: 1. A length of cloth 12 feet long, make clothes to 3/4, with how many feet to use? 12 × (3/4) = 9 (feet), A: go 9 feet.