差倍问题是实际生活和生产中常遇到的问题。由于学生不理解差倍问题的本质特征、数量关系和解题规律,遇到此类问题时常常不知如何着手解答,遇到它的变式题型时更是束手无策。已知大小两个数的差以及这两个数的倍数关系,要求这两个数,这类问题叫做差倍问题。解答差倍问题时,必须选定一个数为标准数(即1倍数),通常是以较小数作为1倍数,再根据较大数与较小数的倍数关 Poor times the problem is often encountered in real life and production problems. Because students do not understand the essential characteristics of the times difference problem, the relationship between quantity and the law of problem-solving, encountered such problems often do not know how to proceed with the answer, met its variant questions is even more helpless. Knowing the difference between the two numbers in size and the multiple relationship between the two numbers requires these two numbers, which are called differential times. To answer the question of the times of the times, you must select a number of standard (that is, a multiple), usually a smaller number as a multiple, then according to the larger number and the smaller multiple of the number of off