Question

me ajudem prfv


(+28)+(-30)+(+22)

b) (-11)+(+22)+(-9)

c) (-20)-(+17)-(+1)

d) (+47)-(-48)-(+2)​

Answer 1

(+28)+(-30)+(+22) <=>
(28)-(30)+(22) <=>
(28+22)-(30) <=>
50-30 <=>
20

Answer 2

Resposta:

a) 20

b) 2

c) -38

d) 93