问题 解答题
计算:
(1)
27
-
1
2-
3
+1

(2)
12
×(
75
+3
1
3
-
48
)
答案

(1)原式=3

3
-(2+
3
)+1

=3

3
-2-
3
+1

=2

3
-1;

(2)原式=2

3
×(5
3
+
3
-4
3
)

=2

3
×2
3
=12.

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