Question

Determine as somas algébricas:
A)20+[-17-(-9+13)]=
B)-1-[21+(-7-12)+1]=
C)15-(11+14)-[3-(16-26)]=
D)-(-9)-[19+(11-2-16)-18]=
E)7-(-3)-[11(-12-12+23)]-(-14)=

Me ajudem a responder por favor

Answer 1

Resposta:

A) = -1

B) = -4

C) = -23

D) = 15

E) = 35