问题 填空题
2
3
=
()
18
4
()
=
48
60
5
8
=
20
()
答案

(1)

2
3
=
(12)
18

(2)

4
(5)
=
48
60

(3)

5
8
=
20
(32)

故答案为:12,5,32.

单项选择题
填空题