I set this on the kitchen table for my 3rd grader, along with the addition/subtraction version for my younger daughter  in kindergarten.  Every morning they have fun taking turns quizzing each other.  Seriously, they actually have fun with this every morning!  Maybe it's the competition of being able to answer as many right as possible, maybe it's fun for them to push the buttons, I don't know why and I don't care.  All I care about, is that they are having fun learning their math facts at breakfast!  By the way, don't believe the other reviews that say you can't see the answer when you push the buttons.  I cannot believe people are actually having trouble seeing the answers!  Either they need glasses, or they have the strength of my one year old who can only push the buttons half-way.