问题 解答题
直接写得数
9
20
×
4
15
5
14
×
21
25
3
7
×
5
6
5
9
×
3
4
8
25
×
5
24
7
10
×
3
14
7
8
×
3
7
20
21
×
3
8
答案

9
20
×
4
15
=
3
25
5
14
×
21
25
=
3
10
3
7
×
5
6
=
5
14
5
9
×
3
4
=
5
12
8
25
×
5
24
=
1
15
7
10
×
3
14
=
3
20
7
8
×
3
7
=
3
8
20
21
×
3
8
=
5
14

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