Question

Calcule:

(a) -5-3.(-2)=
(b) 2+5.(-3)=
(c) -11-2.(-3)+3=
(d) -8+2.[2-(-1)]=

Answer 1

a)-5-3.-2=-5+6=1
b)2+5.-3=2-15=-13
c)-11-2.(-3)+3=-11+6+3=-2
d)-8+2.[2-(-1)]=-8+2.[2+1]=-8+2.3=-8+6=-2

Answer 2

(a)-5-3.(-2)=-8.(-2)=+16
(b)2+5.(-3)=7.(-3)=-21
(c)-11-2.(-3)+3=-13.(-3)+3=-39+3=-36
(d)-8+2.[2-(-1)]=-6.[2+1]=-6.3=-18

acho que é essa a resposta