问题 解答题
3
13
×
26
37
18
21
×
7
9
1
8
×14÷
7
8
4
5
+
3
10
)÷
3
10
5
6
÷(
1
2
+
5
6
3
4
÷
15
16
÷
5
6
答案

(1)

3
13
×
26
37

=

6
37

(2)

18
21
×
7
9

=

2
3

(3)

1
8
×14÷
7
8

=

1
8
×14×
8
7

=2;

(4)(

4
5
+
3
10
)÷
3
10

=

11
10
÷
3
10

=

11
10
×
10
3

=

11
3

(5)

5
6
÷(
1
2
+
5
6
),

=

5
6
÷
8
6

=

5
6
×
6
8

=

5
8

(6)

3
4
÷
15
16
÷
5
6

=

3
4
×
16
15
×
6
5

=

24
25

单项选择题 A型题
单项选择题 A型题