Macisonik2viz Macisonik2viz Matematyka Rozwiązane Wykonaj obliczenia: -5 + 7 = -5 + ( -9 ) = 28 - 17 = -17 + 23 + (- 3 ) = (- 7 ) * (- 7) = ( -4 ) * ( -8 ) = 15 : (-3 ) = (-1) * 3 * (-2 ) = ( -56 ) : ( -8) = ( -90 ) : 5 = ( -6 ) : 2 = 7 * ( -3 ) =