Question

Calcule o valor de cada expressão
-30-5×[(-1)×(15-3×6)+9-3×4]
-5+[(-20)×(-15+30)×(-1)]
11+4×[-6-4×(-5+6)]

Answer 1

-30-5×[(-1)×(15-3×6)+9-3×4]=

-30-5.[(-1).15-18)+9-12]=

-30-5.[-15-18+9-12]=

-30-5.(-33+9-12)=

-30-5.(-24-12)=

-30-5.(-36)=

-30+180=

150

-5+[(-20)×(-15+30)×(-1)]=

-5+[(-20).(15).(-1)]=

-5+(-301)=

-5-301=

-306

11+4×[-6-4×(-5+6)]=

11+4.[-6-(4.1)]=

11+4.(-6-4)=

11+4.(-10)=

11-40=

-29