C# trying to make character move a set distance when keydown

Hello,

Im new to C# and I'm trying to rebuild the frogger game, right now i have the character move by;

 if(Input.GetKey(KeyCode.RightArrow)){
             transform.Translate(Vector2.right * movementSpeedright * Time.deltaTime);
         }

which works the frog moves but i want the character to only move maybe 10 pixies in the direction its going, opposed to it moving smoothy

thank you