问题 解答题
计算下面各题.
3
2
-
5
8
÷
3
4
×
3
5
3
7
+
1
4
÷
2
5
-
1
4
12
19
×
1
5
+
7
19
÷5
17
18
-(
5
9
+
1
6
9
26
5
2
-(
9
22
÷
36
55
-
3
8
)
12÷(
4
5
×4+
6
5
×4)
答案

(1)

3
2
-
5
8
÷
3
4
×
3
5

=

3
2
-
5
8
×
4
3
×
3
5

=

3
2
-
1
2

=1;

(2)

3
7
+
1
4
÷
2
5
-
1
4

=

3
7
+
5
8
-
1
4

=

24
56
+
35
56
-
14
56

=

45
56

(3)

12
19
×
1
5
+
7
19
÷5

=

12
19
×
1
5
+
7
19
×
1
5

=(

12
19
+
7
19
)×
1
5

=1×

1
5

=

1
5

(4)

17
18
-(
5
9
+
1
6
)×
9
26

=

17
18
-
13
18
×
9
26

=

17
18
-
1
4

=

25
36

(5)

5
2
-(
9
22
÷
36
55
-
3
8

=

5
2
-(
5
8
-
3
8

=

5
2
-
1
4

=2

1
4

(6)12÷(

4
5
×4+
6
5
×4)

=12÷[(

4
5
+
6
5
)×4]

=12÷(2×4)

=12÷8

=1.5.

判断题
单项选择题