You can ask the Alexa 'Math Challenge' skill for a math challenge. It challenges users with problems of varying degree of difficulties, which range from addition, subtraction, multiplication, division, highest common factor (H.C.F.) and least common multiple (L.C.M.). The math challenge adapts to users' level; it makes the challenge harder if they are doing well and easier otherwise. You can invoke the skill by saying: Alexa start math challenge.
market
