问题 解答题
5
16
×3
=
3
7
×5
=
7
12
×9
=
5
6
=
5
12
×8
=
7
15
×2
=
答案

5
16
×3
=
15
16
3
7
×5
=
15
7
7
12
×9
=
21
4
5
6
=
5
3
5
12
×8
=
10
3
7
15
×2
=
14
15

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