The Miscalculations of Lightning Girl by Stacy McAnulty

When Lucy was a young child she was hit by lightning that caused her to be both a mathematical savant, and to be obsessive compulsive.  Lucy lives with her grandmother and has been home-schooled until her grandmother decides that Lucy needs to improve her people skills with children her own age. Even though Lucy has technically already graduated from high school, she enrolls Lucy in middle school and challenges her to make at least one friend.

This is a book similar in feeling to Fish in a Tree or Wonder.  Lucy is a likable character, and the reader really hopes she will figure out the whole, "how to be a friend" thing.  It is also a good book about the importance and power of Math. I am not sure why the author had her gain her savant characteristics by being struck by lightning instead of being born that way.  Maybe she was trying to help the reader think, "this could be me," and hence relate with the character a little more. (2018 293 p.)