问题 填空题

计算:

(2.25÷0.375×-0.3×2)÷(2.3×0.25+0.27×2.5)=______.

答案

(2.25÷0.375×-0.3×2)÷(2.3×0.25+0.27×2.5),

=(

9
4
×
8
3
-0.6)÷(2.3×0.25+2.7×0.25),

=5.4÷(5×

1
4
),

=

27
5
×
4
5

=

108
25

=4

8
25

故答案为:4

8
25

判断题
单项选择题 B1型题