问题 解答题
计算:
(1)
1
4
+
0.52
-
38

(2)|1-
2
|+|
2
-
3
|+|2-
3
|

(3)(-2)3×
(-4)2
+
3(-4)3
×(-
1
2
)2-
327
答案

(1)原式=

1
2
+0.5-2

=1-2

=-1;

(2)原式=

2
-1+
3
-
2
+2-
3

=(

2
-
2
)+(-
3
+
3
)+(2-1)

=1;

(3)原式=-8×4+(-4)×

1
4
-3

=-32-1-3

=-36.

选择题
单项选择题