87+(-110) -85 +(+19) -120+(+39)

Question

87+(-110)
-85 +(+19)
-120+(+39)

Answer 1

1) 87+(-100)= -(100-87)= -13
2) -85+(+19)= -(85-19)= -66
3) -120+(+39)= -(120-39)= -81