问题 解答题
直接写出下面各题的得数
2
3
+
5
8
×
2
5
=
5
9
×(
9
5
+18)=
3
4
×
1
9
+
1
4
÷9=
5
12
÷
5
9
=
3
5
÷6×
7
10
=
5
12
×
1
5
+
4
5
×
5
12
=
3
4
÷15÷
5
6
=
5
8
-
2
5
)÷
3
5
=
13
8
-(
5
8
+
4
7
)=
3
8
÷
5
16
-
2
5
=
8
9
-
5
7
+
1
9
=
5
6
+
3
4
)×12=
7
5
-
3
7
-
4
7
=
3
8
÷(
3
4
-
1
6
)=
3
4
-
1
8
)÷
5
12
=
答案

(1)
2
3
+
5
8
×
2
5
=
11
12
(2)
5
9
×(
9
5
+18)=11
(3)
3
4
×
1
9
+
1
4
÷9=
1
9
(4)4×
5
12
÷
5
9
=3
(5)
3
5
÷6×
7
10
=
7
100
(6)
5
12
×
1
5
+
4
5
×
5
12
=
5
12
(7)
3
4
÷15÷
5
6
=
3
50
(8)(
5
8
-
2
5
)÷
3
5
=
3
8
(9)
13
8
-(
5
8
+
4
7
)=
3
7
(10)
3
8
÷
5
16
-
2
5
=
4
5
(11)
8
9
-
5
7
+
1
9
=
2
7
(12)(
5
6
+
3
4
)×12=19
(13)
7
5
-
3
7
-
4
7
=
2
5
(14)
3
8
÷(
3
4
-
1
6
)=
9
14
(15)(
3
4
-
1
8
)÷
5
12
=
3
2

填空题
单项选择题