Respuesta:
a) +8-4= 4
b) -8+4= -4
c) -3+8-2= 3
d) +4-1+3= 6
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Verified answer
Respuesta:
a) +8-4= 4
b) -8+4= -4
c) -3+8-2= 3
d) +4-1+3= 6