Question

a)(+27)+(+13)+(28)R:+12

b)(-50)+(-30)+(-12)R:-92

Answer 1

a) (+27) + (+13) +(-28)
27 +13 -28
40 - 28
12

b)(-50) + (-30)+(-12) 
-50 -30 -12
-80 -12
-92

Bons estudos!

Answer 2

Resposta:92

50+30+12=92