问题 解答题
(0.1+
2
5
+7
1
8
+1.25)÷(18.25-5
1
2
×3
1
5
答案

(0.1+

2
5
+7
1
8
+1.25)÷(18.25-5
1
2
×3
1
5
),

=(0.1+0.4+7.125+1.25)÷(18.25-

11
2
×
16
5
),

=8.875÷(18.25-17.6),

=8.875÷0.65,

=

355
26

填空题