问题 解答题
(1)
32
-5
1
2
+6
1
8

(2)(5
48
-6
27
+4
15
3

(3)
2
3
-1
+
27
-(
3
-1)0

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

(1)原式=4

2
-
5
2
2
+
3
2
2

=4

2
-
2

=3

2

(2)原式=(20

3
-18
3
+4
15
)÷
3

=(2

3
+4
15
)÷
3

=2+4

5

(3)原式=

3
+1+3
3
-1

=4

3

(4)原式=

4+2
3
2
-(18-12)

=2+

3
-6

=-4+

3

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