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有些数学题目中的条件比较复杂,如果仅凭反复读题,难以理清题目中的数量关系。这时,借助线段图来直观地分析题目中的数量关系,可以化解疑难,从而使问题得到解决。如:甲、乙、丙三个桶内各装了一些油,先将甲桶内1/3的油倒入乙桶,再将乙桶内1/5的油倒入丙桶,这时三个桶内的油一样多。如果最初丙桶内有油48千克,那么最初甲桶内有油多
Some math problems in the more complicated conditions, if only by reading the title, it is difficult to sort out the relationship between the number of questions. At this time, with the help of the line graph to intuitively analyze the quantitative relationship between the topics, the problems can be solved and the problems solved. Such as: A, B, C three barrels each with some oil, the first one-third of the barrel of oil into the barrel, and then barrel 1/5 1/5 of the oil into the barrel, then the three As many as a barrel of oil. If the initial barrels have 48 kg of oil, then the initial tank with more oil