Calcule o valor das expressões:
a) (-16):(+4)+17=
b) 3∙(-9)+14=
c) -30+6∙(-1)=
d) (8+5):(2-15)=
e) (+2)∙(-6)+(-5)∙(-3)=
a) (-16):(+4)+17=
b) 3∙(-9)+14=
c) -30+6∙(-1)=
d) (8+5):(2-15)=
e) (+2)∙(-6)+(-5)∙(-3)=
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