问题 解答题
(1)-1
2
3
×(0.5-
2
3
)÷1
1
9

(2)(-
5
6
+
3
4
-
7
18
)×(-36)

(3)-48÷82-(-25)÷(-6)2
(4)-3-[-5+(1-0.2×
3
5
)÷(-2)]
答案

(1)原式=-

5
3
×(
3
6
-
4
6
)÷
10
9
=-
5
3
×(-
1
6
)×
9
10
=
1
4

(2)原式=(-36)×(-

5
6
)+(-36)×
3
4
-(-36)×
7
18
=30-27+14=17;

(3)原式=-48÷64-(-25)÷36=-

3
4
+
25
36
=-
1
18

(4)原式=-3-[-5+(1-

3
25
)×(-
1
2
)]=-3-(-5-
22
25
×
1
2
)=-3-(-
75
25
-
11
25
)=-3+
86
25
=
11
25

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