问题 解答题
下面各题,怎样简便怎样算.
5
3
÷10÷
1
36
24×(
5
6
-
3
8
2
3
+0.25)÷
11
18
4
17
+
4
17
×16
1-
7
9
÷
7
8
1
5
×8÷
4
5
答案

(1)

5
3
÷10÷
1
36

=

1
6
÷
1
36

=6;

(2)24×(

5
6
-
3
8

=24×

5
6
-24×
3
8

=20-9

=11;

(3)(

2
3
+0.25)÷
11
18

=(

2
3
+0.25)×
18
11

=

2
3
×
18
11
+0.25×
18
11

=

12
11
+
9
22

=

3
2

(4)

4
17
+
4
17
×16

=

4
17
×(1+16)

=

4
17
×17

=4;

(5)1-

7
9
÷
7
8

=1-

8
9

=

1
9

(6)

1
5
×8÷
4
5

=

8
5
÷
4
5

=2.

单项选择题
单项选择题 A1/A2型题