问题 解答题
(1)3
8
-5
32
       
(2)
27
-
12
+
45

(3)
12
×
6
   
(4)
32
-3
1
2
+
2

(5)(
2
+
5
)2-
40

(6)
6
×
3
2

(7)(
7
+
3
)(
7
-
3
)-
36

(8)
6
-4×
3216
+42
1
6
答案

(1)原式=6

2
-20
2

=-14

2

(2)原式=3

3
-2
3
+3
5

=

3
+3
5

(3)原式=2

3
×
6

=6

2

(4)原式=4

2
-
3
2
2
+
2

=

7
2
2

(5)原式=7+2

10
-2
10

=7;

(6)原式=

3
×
3

=3;

(7)原式=7-3-6

=-2;

(8)原式=

6
-4×6+7
6

=8

6
-24.

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