I've never been very good at math. Or baking. But that doesn't mean a gal like myself can't appreciate eating pi. Get it? Anyways. How to Bake Pi: An Edible Exploration of the Mathematics of Mathematics by Eugenia Cheng uses recipes as a metaphor for math and explores different math concepts (and yummy desserts) one chapter at a time. She also talks about herself, which brings a realness to the book and makes it more than just a collection of recipes or math lessons. If you want to know what a quadrilateral is, but also how to make homemade hollandaise sauce, this is the book for you.
If you don't care about what A + B equals (C, duh), well, a ton of smart kids ready to take on the world have graduated recently, give them this book at their graduation party, they'll think it's cute.