Question

ME AJUDEM
Calcule
a) (+5 + (+7) =
b) (-8) + (-9) =
c) (-37) + (+35) =
d) (+10) + (-9) =
e) (-15 ) + (+15) =
f) (+80) + 0 =

Answer 1

a) 12
b) -17
c) -2
d) 1
e) 0
f) 80