计算:-(+0.5)-(-3又1/4)+2.75-(+7又1/2) (要正确过程,必采纳
答案:6 悬赏:50 手机版
解决时间 2021-04-02 13:12
- 提问者网友:嗝是迷路的屁
- 2021-04-01 21:18
计算:-(+0.5)-(-3又1/4)+2.75-(+7又1/2) (要正确过程,必采纳
最佳答案
- 五星知识达人网友:零点过十分
- 2021-04-01 21:40
全部回答
- 1楼网友:平生事
- 2021-04-02 02:11
-(+0.5)-(-3又1/4)+2.75-(+7又1/2)
=-0.5-(-13/4)+2.75-(+15/2)
=-0.5+3.25+2.75-7.5
=-2
=-0.5-(-13/4)+2.75-(+15/2)
=-0.5+3.25+2.75-7.5
=-2
- 2楼网友:纵马山川剑自提
- 2021-04-02 00:44
原式=-(+0.5)-(-3.25)+2.75-(+7.5)
=(3.25+2.75)-(0.5+7.5)
= 6-8=-2
=(3.25+2.75)-(0.5+7.5)
= 6-8=-2
- 3楼网友:患得患失的劫
- 2021-04-01 23:24
第一步先把算式里的分数换成小数:
原式=-0.5+3.25+2.75-7.5
=-(0.5+7.5)+(3.25+2.75)
=-8+6
=-2
原式=-0.5+3.25+2.75-7.5
=-(0.5+7.5)+(3.25+2.75)
=-8+6
=-2
- 4楼网友:不如潦草
- 2021-04-01 22:51
原式= -0.5+3.25+2.75-7.5
= (-0.5-7.5)+(3.25+2.75)
= -8+6
= -2
= (-0.5-7.5)+(3.25+2.75)
= -8+6
= -2
- 5楼网友:傲气稳了全场
- 2021-04-01 22:11
-0.5+3.25+2.75-7.5等于-2
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