Resolva : a) (-32)+(-5)=
B) (-15,32)+(+12,9)=
C)(-18,2)+(+35,88)=
D)(+25)+(-19)=
E)(-2)+(-12)+(+5)=
Obs:fazer a conta
B) (-15,32)+(+12,9)=
C)(-18,2)+(+35,88)=
D)(+25)+(-19)=
E)(-2)+(-12)+(+5)=
Obs:fazer a conta
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Lista de comentários
b-) -2,42
c-) 17,68
d-) 6
e-) -9
É só remover os parênteses desnecessários e usar a regra de adição e subtração para calcular a expressão.
B) (-15,32)+(+12,9)= - 2.42
C)(-18,2)+(+35,88)= 17.68
D)(+25)+(-19)= 6
E)(-2)+(-12)+(+5)=-9
e so usar as regras de sinais .nao em segredo
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