1.(-83)+(+26)+(-41)+(+15), 2.(+14)+(-4)+(-2)+(+26)+(-3)
答案:2 悬赏:50 手机版
解决时间 2021-03-19 08:27
- 提问者网友:佞臣
- 2021-03-19 01:38
1.(-83)+(+26)+(-41)+(+15), 2.(+14)+(-4)+(-2)+(+26)+(-3)
最佳答案
- 五星知识达人网友:想偏头吻你
- 2021-03-19 02:24
1、(-83)+(+26)+(-41)+(+15), 2.(+14)+(-4)+(-2)+(+26)+(-3)
=-83+26-41+15
=-83+(26+14-41)
=83+0
=-83
2、(+14)+(-4)+(-2)+(+26)+(-3)
=14-4-2+26-3
=14+26-(4+2+3)
=40-9
=31
3.(-9.6)+1.5+(-0.4)+(-0.3)+8.5
=-9.6+1.5-0.4-0.3+8.5
=(1.5+8.5)-(9.6+0.4)-0.3
=10-10-0.3
=-0.3
=-83+26-41+15
=-83+(26+14-41)
=83+0
=-83
2、(+14)+(-4)+(-2)+(+26)+(-3)
=14-4-2+26-3
=14+26-(4+2+3)
=40-9
=31
3.(-9.6)+1.5+(-0.4)+(-0.3)+8.5
=-9.6+1.5-0.4-0.3+8.5
=(1.5+8.5)-(9.6+0.4)-0.3
=10-10-0.3
=-0.3
全部回答
- 1楼网友:怙棘
- 2021-03-19 02:39
(+14)+(-4)+(-2)+(+26)+(-3)=14-4-2+26=34
(-83)+(+26)+(-41)+(+15)=-83+26-41+15=115
(-1.8)+(0.7)+(-0.9)+1.3+(-0.2)==-1.8-0.2-0.9+(0.7+0.3)=-0.9
4分之一+(-3又3分之1)+(+4又4分之3)+(-6又3分之2)
=4分之一+4又4分之3+(-3又3分之1-6又3分之2)
=5-10=-5
2-(-3又2分之1)=2+3又2分之1=5又2分之1
(-4)-(+7)}-(-5)=-4-7+5=-6
(-83)+(+26)+(-41)+(+15)=-83+26-41+15=115
(-1.8)+(0.7)+(-0.9)+1.3+(-0.2)==-1.8-0.2-0.9+(0.7+0.3)=-0.9
4分之一+(-3又3分之1)+(+4又4分之3)+(-6又3分之2)
=4分之一+4又4分之3+(-3又3分之1-6又3分之2)
=5-10=-5
2-(-3又2分之1)=2+3又2分之1=5又2分之1
(-4)-(+7)}-(-5)=-4-7+5=-6
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