在一次作业中,有一道习题全班83位同学居然有62位做错。这道题是:“有一个整数,把它精确到万位后是10万,那么这个数最大是()。”学生的主要错误答案是99999。既然有这么多学生出错,这道题自然成为评讲时的重点,我要让学生不仅知道错了,而且弄清楚为什么错,这样才能真正掌握,举一反三,带着这样的想法我 In an operation, there is an exercise of the class 83 students actually 62 wrong. The question is: “There is an integer, it is accurate to the tens of thousands of million, then the maximum number is ().” The main error of the student’s answer is 99999. Since there are so many students who make mistakes, this question naturally becomes the focus of the commentary. I want students not only to know the wrong ones, but also to make clear why the mistakes are made so that they can really grasp and give top priority to one another with such an idea