The math paper has the answers to the problems, corresponding to numerals with color codes, (11-black, 12-orange), to make a picture of a black bat on orange background. The riddle is at the top of the page, and the answer is at the bottom. Slightly different! We never had fun things like that when I was in school. Math was just math and very boring, until my sophomore year when I had a crush on my math teacher, and used to sit with him at his desk everyday. I'm not kidding!