试题:
计算:(1)(+
1
4
)+(-2
1
3
)-(-2
3
4
)-(+3
2
3
)

(2)(-5
1
2
4
11
-8÷|-2+4|

(3)(
2
9
-
1
4
+
1
18
)÷(-
1
36
)

(4)-32×
1
3
-[(-5)2×(-
3
5
)-240÷(-4)×
1
4
-2]

答案:

我来补答
(1)原式=
1
4
-
7
3
+
11
4
-
11
3

=3-6
=-3;
(2)原式=-
11
2
×
4
11
-8×
1
2

=-2-4
=-6;
(3)原式=
8-9+2
36
×(-36)
=-1;
(4)原式=-9×
1
3
-[25×(-
3
5
)+60×
1
4
-2]
=-3-(-15+15-2)
=-3+2
=-1.
 
 
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