How To Build a Reputation

Is this Mental Math?

Against my better judgement and with the hope of not reliving too many childhood traumas, this morning I attended the Math workshare Eliot's fourth grade class was holding for parents. The very first classmate I met looked surprised to see me: "Eliot told us you didn't want to come because you're not good in Math..." Word gets around fast I see.
Where's Shakespeare when you need him?