If 2+3=8, 5+4=41 and 3+7=21 then 7+8=?
if 3+4=21 , 5+6=55 , 2+7=18 then how much is 6+8=?
If 10-2= 33 37-23=83 82-4= 43 55-7=32 then 76-45=?