问题 解答题
(1)-
3
4
×(-8+
2
3
-
1
3
)           
(2)(-81)÷2
1
4
×(-
4
9
)
÷16
(3)
6
5
×(-
1
3
-
1
2
÷
5
4
             
(4)-24+(3-7)2-2×(-12
(5)(-0.3)2÷(-0.9)-|(-3)2-22|
(6)-12-|0.5-
2
3
1
3
×[-2-(-3)3].
答案

(1)原式=6-

1
2
+
1
4

=5

3
4

(2)原式=-81×

4
9
×(-
4
9
)×
1
16

=1;

(3)原式=(-

2
5
-
3
5
)×
4
5

=-

4
5

(4)原式=-16+16+2

=-2;     

(5)原式=0.09÷(-0.9)-5

=-0.1-5

=-5.1;      

(6)原式=-1-

1
6
×3×25

=-

27
2

单项选择题
单项选择题