作业帮(-9)-(-2)+(-7)-(+5)-(-4)写成省略加号形式
来源：学生作业帮助网 编辑：作业帮 时间：2024/09/02 16:17:14
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(-9)-(-2)+(-7)-(+5)-(-4)写成省略加号形式
(-9)-(-2)+(-7)-(+5)-(-4)写成省略加号形式
(-9)-(-2)+(-7)-(+5)-(-4)写成省略加号形式
(-9)-(-2)+(-7)-(+5)-(-4)
=-9+2-7-5+4
=-15