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在对比中揭示数量关系昆明市五华区红旗小学范淑敏小学数学第五册第二单元“已知一个数的几倍是多少求这个数”的应用题，是在学生建立了“倍”的概念，学习了前两类倍数应用题（求一个数是另一个数的几倍和求一个数的几倍是多少）的基础上进行的。教学中要注意把新知识置...
Revealed in the comparison of the number of relations Kunming Wuhua Hongqi Primary School Fan Shumin elementary school mathematics fifth unit second unit “known a few times the number is how many to ask for this number of” application problem is to establish a student “times” Concept, learning the first two types of multiple application questions (find a number is several times another number and how many times a number is calculated). Teaching should pay attention to new knowledge ...