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