Respuesta :

0.2, 0.3, 0.4, 0.5 if 0 doesnt count then exclude 0.2. 
-0.2 + 0.2 = 0
-0.2 + 0.3 = 0.1
-0.2 + 0.4 = 0.2
-0.2 + 0.5 = 0.3