在初中数学的学习中总是出现很多省略,如字母前的系数1、幂的指数1、字母之间的乘号等等,这些省略给初中学生的学习带来了很大的困难和烦恼。为了提醒初中的师生们,这里我做了一些 In the learning of junior high school mathematics, there are always many omissions, such as the coefficient before the letter, the exponent of the power, the multiplication between the letters, etc. These omissions have brought great difficulties and annoyances to the learning of junior high school students. In order to remind junior high school teachers and students, here I have done some