Warning: Constant WP_DEBUG already defined in /www/wwwroot/shijuan.xuebaku.com/wp-config.php on line 89

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the xh_social domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /www/wwwroot/shijuan.xuebaku.com/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the pods domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /www/wwwroot/shijuan.xuebaku.com/wp-includes/functions.php on line 6131
七年级数学第一单元测试 – 学霸试题库

七年级数学第一单元测试

# 七年级数学上册第一单元测试

**科目:** 数学
**年级:** 七年级
**范围:** 有理数

## 📝 测试说明

本试卷为七年级数学上册第一单元测试卷。

**考试时间:** 90 分钟
**满分:** 100 分

**⚠️ 本试卷包含详细答案与解析!**

## 📋 试卷内容

### 一、选择题(每题 3 分,共 30 分)

1. -5 的相反数是( )
A. 5 B. -5 C. 1/5 D. -1/5

2. 下列各数中,是负数的是( )
A. 0 B. -(-3) C. -|-2| D. (-2)²

3. 计算:-3+5=( )
A. 2 B. -2 C. 8 D. -8

### 二、填空题(每题 4 分,共 20 分)

11. -2 的绝对值是______。

12. 比较大小:-3______-5(填”>”、”<“或”=”)。 ### 三、计算题(共 50 分) 21. 计算:(-12)+(-8)-(-15) 22. 计算:(-2)³+(-3)×4 — ## 💡 参考答案 ### 一、选择题 1. A 2. C 3. A ### 二、填空题 11. 2 12. >

### 三、计算题
21. 解:原式=-12-8+15=-5
22. 解:原式=-8+(-12)=-20

**同学们加油!💪**