同学们在学习时,不仅要学会基础的知识,还要学会联想和运用,如果能做到举一反三那就更好了!比如下面的问题是同学们常见的一个小练习:□里可填哪些数?□46>673 209□<2099思路点睛:□46>673是三位数和三位数比大小,□46十位上的4小于673十位上的7,要想让□46>673,只要□46百位上的数字比6大就行了。由此得到,□里可填7、8或9。 Students in learning, not only to learn the basics of knowledge, but also learn to associate and use, if we can do to learn from one another it would be better! For example, the following questions are a common practice of students: □ 46> 673 209 □ <2099 Ideas dot: □ 46> 673 is a three-digit and three-digit ratio size, 46 on the 46th place is smaller than the 673 on the tens place 7, in order to let 46> 673, As long as the number on the 46th Hundred is greater than the maximum of six. As a result, you can fill 7, 8, or 9 in.