Dê o resultado das adições:

(+32) + (-6) + (-22) + (+48)=

(-73) + (-22) + (-45) + (-92) + (+250)=

(-82) + 65=

Calcule o valor de:

(+31) + (-27)=

(-50) + (-50)=

-8 -5=

2/7:5/3×2/1=

30/1 : 1/30=
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