Question

8) Efetue as adições.
A) (+13) + (-20)=
B) (-20) + (+13)=
C) 0+ (-8)=
D) (+59) + 0=
E) (+64) + (-64)=
F) (-120) + (120)=

Answer 1

A) -7
B) -7
C) -8
D) 59
E) 0
F) 0