Question

me ajudem por favor
RESOLVA AS EXPRESSÕES NUMÉRICAS
a) ( -5 ) . ( +12 ) .( 20 )
b) ( +2 ) . ( - 28 ) . ( -25 )
c) ( +6 ) . ( -20 ) . ( -30)
d) ( -8 ) . [( -6 ) + ( + 10)]

Answer 1

Resposta:

a) (-5).(+12).(20)=

-60.20=

-1200

b) (+2).(-28).(-25)=

-56.(-25)=

+1400

c) (+6).(-20).(-30)=

-120.(-30)=

+3600

d) (-8).[(-6)+(+10)]=

(-8).[-6+10]=

(-8).4=

-32