Question

Ajuda Urgente Porfavor​

Answer 1

a) 5 + 5 - 7 = 3

b) -15 -16 + 11 = 20

c) 45 - (51 - 11) =

45 - 40 = 5

d) -4 - (7 -2) + 18 -1 =

-4 -5 +18 -1 = 8