Question

c) (-5) + (+8) + (+2) + (+9)
d) (-1) + (+6) + (-3) + (-4) + (-5)
e) (+10) + (-20) + (-15) + (+12) + (+30) + (-40)
f) (+3) + (-6) + (+8)

Answer 1

Resposta:

c)14

d)-7

e)-23

f)5

Explicação passo-a-passo:

c)=3+(+2)+(+9)=

=5+(+9)=

=14

d)=5+(−3)+(−4)+(−5)=

=2+(−4)+(−5)=

=−2+(−5)=

=−7

e)=−10+(−15)+(+12)+(+30)+(−40)=

=−25+(+12)+(+30)+(−40)=

=−13+(+30)+(−40)=

=17+(−40)=

=−23

f)=−3+(+8)=  

=5

espero ter ajudado

confia q tá certo