问题 解答题
计算:
(1)(-3)2-
3
5
×[3×(-
2
3
2-14]+8×[(
1
2
2-(-
1
2
3-1];
(2)[(1-
1
3
2-(-1
2
3
)÷(-1
1
8
)]×(-1
1
2
3
答案

(1)原式=9-

3
5
×(3×
4
9
-1)+8×(
1
4
+
1
8
-1)

=9-

3
5
×
1
3
+2+1-8

=4-

1
5

=3

4
5

(2)原式=[(

2
3
2-
5
3
×
8
9
]×(-
3
2
3

=(

4
9
-
40
27
)×(-
27
8

=

4
9
×(-
27
8
)-
40
27
×(-
27
8

=-

3
2
+5

=3

1
2

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