Respuesta :

a.
[tex]50.5 + 12.3 = 62.8[/tex]
b.
[tex]50.5 - 12.3 = 38.2[/tex]
c.
[tex]50.5 - 12.3 = - 38.2[/tex]


A: 50.5-12.3= 42.2
B: -50.5-12.3= -62.8
C: -50.5+12.3= -48.2