3+4= 9-5= 4+6=
0+8 = 10-7= 5+2 =
6-0= 7+2= 14-4=
5+6= 12-6= 8+8=
11-7= 9+5= 14-5=
7+8= 13-10= 6+8=
15-9= 7+7= 12-8=
9+9= 15-5= 6+6=