问题 解答题
用递等式计算.
3
4
÷4÷
9
8
5
18
÷(
1
3
+
1
2
4
7
×
3
5
+
3
7
÷
5
3
8-2.7÷
9
13
7
6
÷(
8
3
×
7
2
6
2
7
×3
1
3
÷6
2
7
×
3
10
答案

(1)

3
4
÷4÷
9
8

=

3
16
÷
9
8

=

1
6

(2)

5
18
÷(
1
3
+
1
2

=

5
18
÷
5
6

=

1
3

(3)

4
7
×
3
5
+
3
7
÷
5
3

=(

4
7
+
3
7
)×
3
5

=1×

3
5

=

3
5

(4)8-2.7÷

9
13

=8-3.9

=4.1;

(5)

7
6
÷(
8
3
×
7
2

=

7
6
÷
28
3

=

1
8

(6)6

2
7
×3
1
3
÷6
2
7
×
3
10

=(6

2
7
÷6
2
7
)×(3
1
3
×
3
10

=1×1

=1.

问答题 简答题
单项选择题