Question

calcule a) (+ 5) + (− 10) − (−2)
b)(−12) + (−4 )
c) d) (+7) + (+5)

Answer 1

Explicação passo-a-passo:

calcule:

a) (+5)+(-10)-(-2)=

5-10+2=

-5+2=

-3

b)(-12)+(-4)=

-12-4=

-16

c) (+7)+(+5)=

7+5=

12