2+3= 4+2= 0+8= 7-3=
6+1= 5-4= 6-3= 5+2=
3+4= 6-5= 4+3= 8-5=
9-2= 4+5= 3+3= 7+2=
2+3= 4+1= 5+2= 6-3=
7-4= 5-1= 9-6= 8-4=
7-1= 6+3= 9-0= 7-5=
