Question

4-resolva
a) (+5-(-3)+(-1)=

b) (-3)-(-5)+(-6)+(-10)+(+5)=

c) 10-(-6+3-4)+20-(+6-8)-(+1+8-10)=

d) -4-[-3+(-3-1)]​=

Answer 1

Resposta:

a) 7     b) -9    c)40    d) 3

Explicação passo-a-passo:

a) =(+8+(−1))=

=7

b) =2+(−6)+(−10)+(+5)=

=−4+(−10)+(+5)=

=−14+(+5)=

=−9

c) =10−(−3−4)+20−(+(−2))−(+9−10)=

=10−(−7)+20−(+(−2))−(+(−1))=

=17+20−(+(−2))−(+(−1))=

=37−(+(−2))−(+(−1))=

=39−(+(−1))=

=40

d)= −4−[−3+(−4)]=

=−4−[−7]=

=3