问题 解答题
直接写得数.
4
9
×3=
1
3
=
1
2
÷
1
3
=
2
7
÷
2
7
×
8
9
=
3
8
×2=
3
25
×
5
9
=
3
8
÷
3
4
=
2
7
×(
1
4
+
1
3
)=
答案

4
9
×3=1
1
3
1
3
=15
1
2
÷
1
3
=1
1
2
2
7
÷
2
7
×
8
9
=
8
9
3
8
×2=
3
4
3
25
×
5
9
=
1
15
3
8
÷
3
4
=
1
2
2
7
×(
1
4
+
1
3
)=
1
6

阅读理解与欣赏
多选题