问题 解答题
怎样简便怎样算.
5
4
×16×
1
8
 
3
8
÷12÷
5
16
11
3
÷[(
5
6
-
3
8
)×24]
5
7
×
8
5
+
2
7
÷
5
8
5
4
+
4
9
+
2
3
×
7
3
9
10
÷(
3
5
+
9
10
答案

(1)

5
4
×16×
1
8

=20×

1
8

=

5
2

(2)

3
8
÷12÷
5
16

=

3
8
×
1
12
×
16
5

=

1
32
×
16
5

=

1
10

(3)

11
3
÷[(
5
6
-
3
8
)×24],

=

11
3
÷[
5
6
×24-
3
8
×24],

=

11
3
÷[20-9],

=

11
3
÷11,

=

1
3

(4)

5
7
×
8
5
+
2
7
÷
5
8

=

5
7
×
8
5
+
2
7
×
8
5

=(

5
7
+
2
7
)×
8
5

=1×

8
5

=

8
5

(5)

5
4
+
4
9
+
2
3
×
7
3

=

5
4
+
4
9
+
14
9

=

5
4
+(
4
9
+
14
9
),

=

5
4
+2,

=3

1
4

(6)

9
10
÷(
3
5
+
9
10
),

=

9
10
÷
3
2

=

3
5

填空题
单项选择题