问题 解答题
计算
(1)-9+12-3+8                
(2)3-
3
4
×(8-1
1
3
-
14
15

(3)-24-(-5
1
2
)×
4
11
+(-2)3         
(4)(-2)3-2×(-3)+|2-5|-(-1)2010
答案

(1)原式=3-3+8

=8;

(2)原式=3-

3
4
×8+
3
4
×
4
3
+
3
4
×
14
15

=3-6+1+

7
10

=-2+

7
10

=-1.3;

(3)原式=-16+

11
2
×
4
11
-8

=-16+2-8

=-22;

(4)原式=-8+6+3-1

=0.

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