Beast Academy: Math 5D (Guide)
Recommended for students ages 11‑13.
Beast Academy provides a fun, rigorous, challenging, complete curriculum for aspiring math beasts. BA Level 5D includes chapters on percents, square roots, and exponents.
The Guide book is written in an engaging comic book style, and the Practice book provides over 500 problems ranging from introductory level exercises to very challenging puzzles and word problems.