问题 解答题
直接写出得数:
2
3
×
6
7
=
2
5
÷
3
10
=
4
5
+
1
10
=
4
9
-
1
3
=
2
5
+
1
2
=
3
7
-
1
6
=
9
10
×
5
7
=
5
12
÷
5
6
=
9
10
-
2
5
=
3
4
+
2
3
=
14×
2
21
=
2
5
×
1
6
=
答案

2
3
×
6
7
=
4
7
2
5
÷
3
10
=
4
3
4
5
+
1
10
=
9
10
4
9
-
1
3
=
1
9

2
5
+
1
2
=
9
10
3
7
-
1
6
=
11
42
9
10
×
5
7
=
9
14
5
12
÷
5
6
=
1
2

9
10
-
2
5
=
1
2
3
4
+
2
3
=
17
12
14×
2
21
=
4
3
2
5
×
1
6
=
1
15

故答案为:

4
7
4
3
9
10
1
9
9
10
11
42
9
14
1
2
1
2
17
12
4
3
1
15

单项选择题
单项选择题