计算(-5)-(+3)+(-9)-(-7)+2分之1所得结果是多少快啊

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/26 16:10:27

计算(-5)-(+3)+(-9)-(-7)+2分之1所得结果是多少快啊
计算(-5)-(+3)+(-9)-(-7)+2分之1所得结果是多少
快啊

计算(-5)-(+3)+(-9)-(-7)+2分之1所得结果是多少快啊
(-5)-(+3)+(-9)-(-7)+1/2
=-5-3-9+7+0.5
=-10+0.5
=-9.5

(-5)-(+3)+(-9)-(-7)+2分之1
= - 5 - 3 - 9 + 7 + 1/2
= - 17 + 7 + 0.5
= - 9.5

(-5)-(+3)+(-9)-(-7)+2分之1
=-5-3-9+7+1/2
=-9.5

(-5)-(+3)+(-9)-(-7)+1/2= -5-3-9+7+1/2= -9.5。

=======-9.5


(-5)-(+3)+(-9)-(-7)+1/2
=-5-3-9+7+1/2
=-8-9+7+1/2
=-10+1/2
=-19/2