Speletjies wat gebaseer is op wiskundige berekeninge wat ontwerp is om hoofrekene te verbeter. Speletjies wat vereis dat die speler maal, deel, optel en aftrek gekombineer op verskillende maniere.
Games based on arithmetical operations designed to improve your mental calculation skills. Games that require the player to use multiplication, division, addition and subtraction combined in different ways.