2
-
____________________
=
1
3
?
____________________
=
1
4
-
____________________
=
1
5
-
____________________
=
1
6
-
____________________
=
1
7
-
____________________
=
1
8
-
____________________
=
1
9
-
____________________
=
1
10
-
____________________
=
1
