数学
在每个蒙古包的门上都有一张写有数学题的纸条,只有做对了这道题才可以进入蒙古包.

2019-05-27

在每个蒙古包的门上都有一张写有数学题的纸条,只有做对了这道题才可以进入蒙古包.
优质解答
(1)
1
15
×8÷
4
5

=
1
15
×8×
5
4

=
2
3


(2)
3
15
+
1
2
×
4
15

=
3
15
+
2
15

=
1
3


(3)
5
16
÷
2
3
÷
5
16

=
5
16
÷
5
16
÷
2
3

=1÷
2
3

=
3
2


(4)(
5
8
+
5
6
)×
4
25

=
35
24
×
4
25

=
7
30


(5)(
5
6
-
2
3
)×
9
20

=
1
6
×
9
20

=
1
15
×8÷
4
5

=
1
15
×8×
5
4

=
2
3


(2)
3
15
+
1
2
×
4
15

=
3
15
+
2
15

=
1
3


(3)
5
16
÷
2
3
÷
5
16

=
5
16
÷
5
16
÷
2
3

=1÷
2
3

=
3
2


(4)(
5
8
+
5
6
)×
4
25

=
35
24
×
4
25

=
7
30


(5)(
5
6
-
2
3
)×
9
20

=
1
6
×
9
20

=