Va rog, am nevoie de ajutor! Dau coroana, cat mai rapid!!
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Răspuns:
Regulile de calcul!!!
( +) × ( -) = ( - )
( +) × ( +) = ( +)
( -) × ( -) = ( +)
a) ( - 2020) : (-2020) = 1
b) (+2020) : (+5) = 404
c) (-2020) : (+101) = (-20)