问题 解答题
计算:
(1)-3-[-5+(1-0.2×
3
5
)÷(-2)]

(2)[-3+(-5+|-4|)×(-
3
2
)]
÷
2
3
÷(-
3
2
)3
答案

(1)原式=-3-[-5+(1-

3
25
)×(-
1
2
)]

=-3-[-5+

22
25
×(-
1
2
)]

=-3-(-5-

11
25

=-3+5+

11
25

=2

11
25

(2)原式=[-3+(-5+4)×(-

3
2
)]×
3
2
÷(-
27
8

=(-3+

3
2
)×
3
2
×(-
8
27

=-

3
2
×
3
2
×(-
8
27

=

2
3

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