题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010948-38663.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010949-29598.png)
答案
解析
试题分析:根据题意画出数轴即可直接解答.
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010949-21756.png)
根据数轴的特点可知:比-3大,但不大于2的所有整数为:-2,-1,0,1,2,
故其积为:(-2)×(-1)×0×1×2=0.
点评:本题属于基础应用题,只需学生熟练掌握数轴上点的位置,即可完成。
核心考点
举一反三
—3.8,—10,4.3,—∣—
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010946-28168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010946-92318.png)
整数集合:{ … }; 分数集合:{ … };
正数集合:{ … }; 有理数集合:{ … }。
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010938-45168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010939-88605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010939-49140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010939-88276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-84496.png)
(2)(5分)有理数
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-17676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-44117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-46325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-70100.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010941-97611.jpg)
①
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-17676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-44117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010941-96307.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010941-89449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010941-90882.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010941-41715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010941-90882.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-17676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010941-41715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010940-44117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010937-60428.png)
小明说:“绝对值不大于4的整数有7个。”
小丁说:“若
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010934-20511.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010935-79244.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010935-95051.png)
小亮说:“
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010935-92888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010935-82603.png)
小彭说:“多项式
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010935-68159.png)
依次判断四位同学的说法是否正确,如不正确,请帮他们修正,写出正确的说法。
计算(-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-73679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-71407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-29828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-62838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-99237.png)
解法l: 解法2:
(-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-73679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-71407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-29828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-62838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-99237.png)
=(-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-73679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-71407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-62838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-29828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-99237.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-71407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-29828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-62838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-99237.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-73679.png)
=(-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-73679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010933-96838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010933-86510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-71407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-29828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-62838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-99237.png)
=(-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-73679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010933-15153.png)
=-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-73679.png)
=-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-29828.png)
故原式=-
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-29828.png)
再根据你对所提供材料的理解,选择合适的方法计算:
(一
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010933-74391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-62838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010933-23075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010932-71407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190815/20190815010934-29473.png)
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