An operating method for an electronic device includes detecting a touch input including a plurality of touch points on the screen, obtaining the positional relationship of the plurality of touch points, and performing a function corresponding to the touch input based on the positional relationship. An electronic device includes a screen configured to detect a touch input comprising a plurality of touch points on the screen, and a controller configured to obtain a positional relationship of the plurality of touch points, and to perform a function corresponding to the touch input based on the positional relationship. Other embodiments are provided.