问题 解答题
2
3
+
1
6
=
6.2÷0.5=
1
6
×
4
9
=
1-
1
2
+
1
4
=
3
8
×12
=
4
2
5
÷
4=
2
13
÷
3
4
=
8-2÷
2
7
=
4
9
×6
=
4÷0.25=
3
8
-
3
24
=
5
6
+4×
5
6
=
答案

2
3
+
1
6
=
5
6
6.2÷0.5=12.4,
1
6
×
4
9
=
2
27
1-
1
2
+
1
4
=
3
4
3
8
×12
=
9
2
4
2
5
÷
4=
11
10
2
13
÷
3
4
=
8
39
8-2÷
2
7
=1,
4
9
×6
=
8
3
4÷0.25=16,
3
8
-
3
24
=
1
4
5
6
+4×
5
6
=
25
6

单项选择题
单项选择题