5+1= 5+2=5+3= 5+45+5= 6+1=6+2= 6+3=
6+4= 7+1=
7+2= 7+3
8+1= 8+2=
9+1= 9-1=
9-2= 9-3=
9-4= 9-5=
9-6= 9-7=
9-8= 9-9=
8-1= 8-2=
