Question

Calcula quitando los paréntesis
a ) +7 -12 +(-5+6)-7
b ) -5-(+12-5)+4
c )-(+3-2+4-6)+(-1+7)-12
d )+12-(+16-11+3)-(-3+5)
e )-8+(+5-9)-6-(-8+3+5)

Answer 1

a) +7-12+1-7 = -5+(-6) = -11

b) -5-7+4 = -12+4 = -8

c) - (-1) +6-12 = 1+6-12 = -5

d) +12 - 8 - 2 = +2

e) -8 + (-4) -6 - 0 = -8-4-6 = -18