问题 解答题
(1)18-6÷(-2)×(-
1
3
)                     
(2)(
1
4
+
1
6
-
1
2
)×(-12)

(3)(-3)2×{-
2
3
+(-
5
9
)
}                        
(4)0-23÷(-4)3-
1
8
答案

(1)18-6÷(-2)×(-

1
3
) 

=18-3×

1
3

=18-1

=17;

                    

(2)(

1
4
+
1
6
-
1
2
)×(-12)

=

1
4
×(-12)+
1
6
×(-12)-
1
2
×(-12)

=-3-2+6

=1;

(3)(-3)2×{-

2
3
+(-
5
9
)}       

=9×{-

11
9
}     

=-11;

             

(4)0-23÷(-4)3-

1
8

=0-8÷(-64)-

1
8

=0+

1
8
-
1
8

=0.

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