问题 解答题
计算.
(108÷25)×(75÷18)
3.5×(20.6-16.8÷4.8)
3
2
-
5
6
)×(
2
3
+
6
5
)      
3
14
×[7-4÷(
2
15
+
2
3
)].
答案

(1)(108÷25)×(75÷18),

=

108
25
×
75
18

=18;

(2)3.5×(20.6-16.8÷4.8),

=3.5×(20.6-3.5),

=3.5×17.1,

=59.85;

(3)(

3
2
-
5
6
)×(
2
3
+
6
5
),

=

2
3
×
28
15

=

56
45

(4)

3
14
×[7-4÷(
2
15
+
2
3
)],

=

3
14
×[7-4÷
4
5
],

=

3
14
×[7-4×
5
4
],

=

3
14
×[7-5],

=

3
14
×2,

=

3
7

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