-
|
+
|
=8
|
|||
-
|
n
|
+
|
n
|
×
|
n
|
-
|
4
|
×
|
=9
|
||
×
|
n
|
-
|
n
|
+
|
n
|
+
|
:
|
=3
|
|||
=8
|
n
|
=2
|
n
|
=9
|
n
|
9
|
-
|
3
|
+
|
2
|
=8
|
-
|
n
|
+
|
n
|
×
|
n
|
7
|
-
|
4
|
×
|
3
|
=9
|
×
|
n
|
-
|
n
|
+
|
n
|
4
|
+
|
5
|
:
|
3
|
=3
|
=8
|
n
|
=2
|
n
|
=9
|
n
|