Are you smarter than a 5th grader?

Tweet

This show has been very entertaining to watch and sometimes, we laugh at the contestants because they can't remember a piece of information that 5th graders know. But let's face it, most of the facts we learn in school, we forget the moment we finish the exam. There may be a few things we remember but most of them, we don't. So what's the one piece of information you still remember from grade school?