Question

Elimine os parênteses e calcule:
a) 7-(-6)-(-8)=
b)-8+(-6)-(+3)=
c)5-6-(+7)+1=
d)-28+7+(+12)+(-1)-6=
e)-21-7-6-(-15)-2-(-10)=
f)10-(-8)+(-9)-(-12)-6+5=

Answer 1

A) =+21
B)= -17
C) = -7
D)= -16
E)= -11
F)= +20

Answer 2

Olá,

a) 7+6+8 = 21
b) -8-6-3 = -17
c) 5-6-7+1= -7
d) -28+7+12-1-6= -16
e) -21-7-6+15-2+10= -11
f) 10+8-9+12-6+5= 20

Bons estudos!