问题 解答题
计算(写出过程)
(1)
2
7
÷
9
14
(2)38÷
8
9
(3)
6
25
÷
3
10
(4)
39
70
÷13.
答案

(1)

2
7
÷
9
14

=

2
7
×
14
9

=

4
9

(2)38÷

8
9

=38×

9
8

=

171
4

(3)

6
25
÷
3
10

=

6
25
×
10
3

=

4
5

(4)

39
70
÷13,

=

39
70
×
1
13

=

3
70

判断题
问答题 案例分析题