问题 解答题
直接写得数
3
4
÷4=
1
6
+
2
9
=
8
13
÷
4
39
=
7
12
×
4
7
=
3
4
=
1
2
=
5
7
=
1-
2
5
-
3
10
=
2-
5
6
=
5
9
×
1
2
=
答案

3
4
÷4=
3
16
1
6
+
2
9
=
7
18
8
13
÷
4
39
=6,
7
12
×
4
7
=
1
3
3
4
=6,
1
2
=4,
5
7
=
7
5
1-
2
5
-
3
10
=
3
10
2-
5
6
=1
1
6
5
9
×
1
2
=
5
9

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