问题 解答题
直接写出得数.
3
4
×
4
9
=
2
13
=
16×
3
5
=
3
7
=
4
5
÷
3
5
=
4
9
÷
3
5
=
3
10
÷
2
5
=
21÷
7
9
=
6
11
×
5
12
=
答案

3
4
×
4
9
=
1
3
2
13
=0
16×
3
5
=
48
5
3
7
=
7
3
4
5
÷
3
5
=
4
3
4
9
÷
3
5
=
20
27
3
10
÷
2
5
=
3
4
21÷
7
9
=27
6
11
×
5
12
=
5
22

单项选择题
单项选择题