问题 解答题
合理灵活地进行计算.
1
5
×8÷
16
25
4
25
×99+
4
25
7
10
÷
6
5
÷
21
32
[1-(
3
10
+
3
5
)]÷
4
5
3
4
×
1
9
×
3
2
答案

(1)

1
5
×8÷
16
25

=

8
5
÷
16
25

=2.5;

(2)

4
25
×99+
4
25

=

4
25
×(99+1),

=

4
25
×100,

=16;

(3)

7
10
÷
6
5
÷
21
32

=

7
12
÷
21
32

=

8
9

(4)[1-(

3
10
+
3
5
)]÷
4
5

=[1-

9
10
4
5

=

1
10
÷
4
5

=

1
8

(5)

3
4
×
1
9
×
3
2

=

1
12
×
3
2

=

1
8

单项选择题
单项选择题