-0.5-[-3.25]+2.75-7.5=

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/08 00:38:41
-0.5-[-3.25]+2.75-7.5=

-0.5-[-3.25]+2.75-7.5=
-0.5-[-3.25]+2.75-7.5=

-0.5-[-3.25]+2.75-7.5=

原式=-0.5+3.25+2.75-7.5
=2.75+2.75-7.5
=5-7.5
=-2.5