题目内容

计算.
4
15
÷8
=
10
21
÷5
=
7
12
÷14
=
5
8
÷5
=
13
21
÷13
=
5
6
÷25
=
5
16
÷15
=
20
21
÷10
=
7
2
÷14
=
8
15
÷2
=
5
8
×12
=
13
18
÷26
=
2
7
×4
=
1
7
×3
=
8
9
÷4
=
3
7
÷3
=
5
12
×2
=
1
15
×6
=
5
6
÷2
=
2
5
÷6
=
4
15
÷8
=
1
30
10
21
÷5
=
2
21
7
12
÷14
=
1
24
5
8
÷5
=
1
8
13
21
÷13
=
1
21
5
6
÷25
=
1
30
5
16
÷15
=
1
48
20
21
÷10
=
2
21
7
2
÷14
=
1
4
8
15
÷2
=
4
15
5
8
×12
=
15
2
13
18
÷26
=
1
36
2
7
×4
=
8
7
1
7
×3
=
3
7
8
9
÷4
=
2
9
3
7
÷3
=
1
7
5
12
×2
=
5
6
1
15
×6
=
2
5
5
6
÷2
=
5
12
2
5
÷6
=
1
15
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