Mathematics, 21.05.2021 18:30 iwannasleep

2) Elimine os parênteses e calcule a) (-34) + (-12) =
b) (-84) + (-84) =
c) (+48) + (-66) =
d) (-91) + 0 =
e) 0 + (+77) =
f) (-3) + (+11) + (-8) =

Answers: 2

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2) Elimine os parênteses e calcule a) (-34) + (-12) =
b) (-84) + (-84) =
c) (+48) + (...