By Jason Batterson.
Illustrated by Erich Owen and Sarah Leuver.
Recommended for students ages 6‑8.
 
Beast Academy provides a fun, rigorous, challenging, complete curriculum for aspiring math beasts. BA Level 1B includes chapters on addition, subtraction, and categories.
 
The book includes Guide sections written in an engaging comic book style, and over 600 practice problems ranging from introductory level exercises to very challenging puzzles and word problems.