A) (+7) +(+148)=
b) (-39) + (-473) =
c) (+493) + (+937) =
d) (-29) + (-57) =
e) (-306) + (+235) =
f) (-28)+(-73) =
g) (+536) + (-627) =
h) (+93) + (-102) =
i) (+1498) + (-1249) =
j) (-19) + (+3) =
k) (+333) + (-666) =
l) (-319) + 217) =
m) (+5979) + (19783) =
n) (-34987) + (-96918) =
o) (+4888) + (-5091) =
p) (+1989) + (-2021) =
q) (19903) + (-794) =
r) (-779) + (394) =
s) (+6671) + (+776) =

Por favor preciso das respostas pois esta valendo nota para amanhã. Obrigada
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