问题 解答题
计算:(1)(-9)-(-7)+(-6)-(+4)-(-5)
(2)-24÷(-
3
2
)+6×(-
1
3
)

(3)(
3
4
-
5
6
+
7
12
)÷(-
1
36
)
                                      
(4)-12012-(-5
1
2
4
11
+(-2)3÷|-32+1|
答案

(1)(-9)-(-7)+(-6)-(+4)-(-5)

=(-9)+7+(-6)+(-4)+5

=[(-9)+(-6)+(-4)]+(7+5)

=(-19)+12

=-(19-12)

=-7;  

(2)-24÷(-

3
2
)+6×(-
1
3
)

=-24×(-

2
3
)+(-2)

=16+(-2)

=14;   

(3)(

3
4
-
5
6
+
7
12
)÷(-
1
36
)

=(

3
4
-
5
6
+
7
12
)×(-36 )

=

3
4
×(-36)-
5
6
×(-36)+
7
12
×(-36)

=(-27)-(-30)+(-21)

=-18;  

(4)-12012-(-5

1
2
4
11
+(-2)3÷|-32+1|

=-1-(-

11
2
)×
4
11
+(-8)÷8

=-1+2+(-1)

=0.

综合
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