问题 填空题
()÷()=
2
5
=
6
()
=
()
25
=()
(填小数)
答案

2
5
=2÷5=0.4,

2
5
=
6
15

2
5
=
10
25

故答案为:2,5,15,10,0.4.

解答题
单项选择题