问题 解答题
1
12
+
1
4
=______
3.5+6
1
2
=______
2-
6
7
=______
4
5
-
8
15
=______
1
4
-
1
5
=______
1
2
-
2
5
=______
0.2-
1
6
=______
0.3+
1
3
=______
3
4
×4=______
5
6
×
8
15
=______
3
16
×
4
9
______
15×1
2
3
=______
7
24
×
3
4
=______
3
5
=______
24÷
3
4
=______
2
5
÷
1
2
=______
5
18
÷1
2
3
=______
8
9
÷
3
8
=______
5
8
÷
2
3
=______
9+
2
9
=______
12π=______
0.4×3.14=______
0.92=______
2.5×3.4=______
28÷
2
3
=______.
答案

1
12
+
1
4
=
1
3
3.5+6
1
2
=10 2-
6
7
=1
1
7
4
5
-
8
15
=
4
15
1
4
-
1
5
=
1
20

1
2
-
2
5
=
1
10
0.2-
1
6
=
1
30
0.3+
1
3
=
19
30
3
4
×4=3
5
6
×
8
15
=
4
9

3
16
×
4
9
1
12
15×1
2
3
=25
7
24
×
3
4
=
7
32
3
5
=0 24÷
3
4
=32

2
5
÷
1
2
=
4
5
5
18
÷1
2
3
=
1
6
8
9
÷
3
8
=2
10
27
5
8
÷
2
3
=
15
16
9+
2
9
=9
2
9

12π=37.68 0.4×3.14=1.256 0.92=0.81 2.5×3.4=8.5 28÷

2
3
=42.

单项选择题 A3/A4型题
判断题