Beast Academy: Math 4D (Guide)
Recommended for students ages 10‑12.
Beast Academy provides a fun, rigorous, challenging, complete curriculum for aspiring math beasts. BA Level 4D includes chapters on fractions, decimals, and probability.
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.