问题 解答题
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]
答案

(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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