(+8)+(-10)+(-2)+(+1) (-5)+(+6)+(-3)+(-9)+(+4)+(+7) (+0.65)+(-1.9)+(-0.1)+(+0.65)
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/28 16:19:33
(+8)+(-10)+(-2)+(+1)(-5)+(+6)+(-3)+(-9)+(+4)+(+7)(+0.65)+(-1.9)+(-0.1)+(+0.65)(+8)+(-10)+(-2)+(+1)(-
(+8)+(-10)+(-2)+(+1) (-5)+(+6)+(-3)+(-9)+(+4)+(+7) (+0.65)+(-1.9)+(-0.1)+(+0.65)
(+8)+(-10)+(-2)+(+1) (-5)+(+6)+(-3)+(-9)+(+4)+(+7) (+0.65)+(-1.9)+(-0.1)+(+0.65)
(+8)+(-10)+(-2)+(+1) (-5)+(+6)+(-3)+(-9)+(+4)+(+7) (+0.65)+(-1.9)+(-0.1)+(+0.65)
(+8)+(-10)+(-2)+(+1)
=8-10-2+1
=-2-2+1
=-4+1
=-3
(-5)+(+6)+(-3)+(-9)+(+4)+(+7)
=-5+6-3-9+4+7
=1-3-9+4+7
=-2-9+4+7
=-11+4+7
=0
(+0.65)+(-1.9)+(-0.1)+(+0.65)
=0.65-1.9-0.1+0.65
=0.65+0.65-(1.9+0.1)
=1.3-2
=-0.7
-7.8
满意请采纳~~
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