问题 解答题
直接写出得数
21×
2
7
=
4
9
÷2=
2
9
×
6
7
=
3
8
÷
1
2
=
5
12
÷
5
6
=
12÷
3
4
=
5
9
=
53
6
×0=
答案

21×
2
7
=6,
4
9
÷2=
2
9
2
9
×
6
7
=
4
21
3
8
÷
1
2
=
3
4
5
12
÷
5
6
=
1
2
12÷
3
4
=16,
5
9
=
9
5
53
6
×0=0.
故答案为:6,
2
9
4
21
3
4
1
2
,16,
9
5
,0.

解答题
单项选择题