A method for simultaneous double-side material-removing processing of at least three workpieces includes disposing the workpieces in a working gap between rotating upper and lower working disks of a double-side processing apparatus. The workpieces lie in freely movable fashion in respective openings in a guide cage and are moved under pressure in the working gap using the guide cage. Upon attaining a preselected target thickness of the workpieces, a deceleration process is initiated that includes reducing an angular velocity ωi(t) of a respective drive i of each of the upper working disk, lower working disk and guide cage to a standstill. The reducing is carried out such that ratios of the angular velocities ωi(t) with respect to one another as a function of time t deviate by no more than 10% from initial ratios of the angular velocities ωi(t) corresponding to when the preselected target thickness was attained.