问题 解答题
计算:
(1)
0.5
+
32
-2
1
3
-
1
8
-
75
;    (2)
2-3
2
2
+
3
-
6
3
-(
3
-2
2
)(
3
+2
2
)
答案

(1)原式=

1
2
+4
2
-
2
3
3
-
2
4
-5
3

=

2
2
+
2
-
2
3
3
-
2
4
-5
3

=

2
2
+
2
2
2
-
2
4
-(
2
3
3
+5
3

=

5
2
4
-
17
3
3

(2)原式=

(2-3
2
2
2
+
(
3
-
6
3
3
-(3-8)

=

2
2
-6
2
+
3-3
2
3
+5

=

2
-3+1-
2
+5

=3.

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