September 2018 1 39 Report
Verificar si se cumplen las siguientes igualdades.
a.3x(-2)÷5-1=-2
b.12+(-8)÷4=1
c.(-2)+(5)x(-3)=13
d.10+(7-3)=14
e.-[(-8x3)+(-21-12)]=57
f.-{-[(14÷-7)x(32÷4)]}=18

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