问题 解答题
直接写出得数.
8
15
×1
=
3
7
×0
=
9
11
×
5
9
=
2
9
×4×
3
8
=
5
28
×
4
9
=
1
5
×
1
5
×
5
12
=
10
91
×
13
20
=
17
25
×14+
17
25
×11
=
答案

直接写出得数.

8
15
×1=
8
15

3
7
×0=0;

9
11
×
5
9
=
5
11

2
9
×4×
3
8
=
1
3

5
28
×
4
9
=
5
63

1
5
×
1
5
×
5
12
=
1
60

10
91
×
13
20
=
1
14

17
25
×14+
17
25
×11=17.

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