题目内容

计算
(1)-3+(-3)-(-6)
(2)3×(-
4
5
9
10

(3)-22+3×(-1)3-(-4)×5
(4)-1-[2-(1-
1
3
×0.5)]×[32-(-2)2]
(1)-3+(-3)-(-6)
=-6+6
=0;

(2)3×(-
4
5
9
10

=-3×
4
5
×
10
9

=-2
2
3


(3)-22+3×(-1)3-(-4)×5
=-4+3×(-1)+20
=-4-3+20
=13

(4)-1-[2-(1-
1
3
×0.5)]×[32-(-2)2]

=-1-[2-(1-
1
6
)]×[9-4]
=-1-[2-
5
6
]×5
=-1-
7
6
×5
=-1-5
5
6

=-6
5
6
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