Smarter Than A 5th Grader?

I never did like the show. It made me feel stupid. Kind of like I should go back to school or something. Had I watched the slow more diligently and paid more attention to the correct answers, I might not be in the quandary I find myself in these days. I can't even remember what I read on Facebook yesterday and now I'm supposed to recall what I learned 54 years ago. If you think doing crossword puzzles keeps your mind sharp, try a little 5th grade math. Quick...  name the three kinds of triangles... name the three types of angles... What do the angles add up to?  Need a little help? I'd be totally lost without Math is Fun.