问题 解答题
计算.
1
3
÷
10
3
×
3
2
5
7
÷
3
5
÷
7
5
3
4
×8÷
3
14
5
8
÷
1
16
÷4
(40-35×
2
7
)÷
10
9
[
19
20
-(
9
20
+
1
3
)]×
2
5
答案

(1)

1
3
÷
10
3
×
3
2

=

1
3
×
3
10
×
3
2

=

3
20

(2)

5
7
÷
3
5
÷
7
5

=

5
7
×
5
3
×
5
7

=

125
147

(3)

3
4
×8÷
3
14

=

3
4
×8×
14
3

=28;

(4)

5
8
÷
1
16
÷4,

=

5
8
×16×
1
4

=

5
2

(5)(40-35×

2
7
)÷
10
9

=(40-10)×

9
10

=30×

9
10

=27;

(6)[

19
20
-(
9
20
+
1
3
)]×
2
5

=[

19
20
-
9
20
-
1
3
2
5

=[

1
2
-
1
3
2
5

=

1
6
×
2
5

=

1
15

判断题
单项选择题 A1/A2型题