问题 解答题
直接写得数.
15÷
9
10
=
3
8
×
4
9
=
3
4
-
3
5
=
3
4
+
1
4
÷
3
5
=
8
9
÷
16
27
=
5
6
=
5
12
÷
5
18
=
3
4
×
4
3
÷
3
4
×
4
3
=
答案

15÷
9
10
=
50
3
3
8
×
4
9
=
1
6
3
4
-
3
5
=
3
20
3
4
+
1
4
÷
3
5
=
7
6
8
9
÷
16
27
=
3
2
5
6
=
6
5
5
12
÷
5
18
=
3
2
3
4
×
4
3
÷
3
4
×
4
3
=
16
9

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