问题 解答题
2
3
+
1
2
=
20×
3
5
=
0.36÷0.6=
4
7
-
1
2
=
3
4
÷2=
3.5-3.05=
5
9
÷
1
6
=
7×(
3
7
+
1
14
)=
3
8
×
16
7
=
1-
21
23
=
5
12
÷
1
3
=
4-
4
9
-
5
9
=
0.25×12=
7
12
×
9
14
=
3.27+1.83=
5
6
+
2
17
+
1
6
=
答案

2
3
+
1
2
=
7
6
20×
3
5
=12,
0.36÷0.6=0.6,
4
7
-
1
2
=
1
14
3
4
÷2=
1
8
3.5-3.05=0.45,
5
9
÷
1
6
=
10
3
7×(
3
7
+
1
14
)=3
1
2
3
8
×
16
7
=
6
7
1-
21
23
=
2
23
5
12
÷
1
3
=
5
4
4-
4
9
-
5
9
=3,
0.25×12=3,
7
12
×
9
14
=
3
8
3.27+1.83=5.1,
5
6
+
2
17
+
1
6
=1
2
17

多项选择题
选择题