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Beast Academy is the new elementary-school math curriculum from Art of Problem Solving. Beast Academy provides a full, rigorous, and entertaining curriculum for aspiring math beasts ages 6–13. The series consists of four two-book sets for each level. The Guide book of each set presents the lessons and the Practice book provides exercises and problems to reinforce the lessons.

Beast Academy 4C is the third set in the four-set series for Level 4. Guide 4C delivers complete lessons to the students of Beast Academy in an engaging comic-book style. The companion book, Practice 4C, provides over 500 problems ranging from introductory level exercises to very challenging puzzles and word problems, to reinforce the lessons in the Guide.

Beast Academy 4C covers the following topics:

Factors : Primes, divisibility, prime factorization, factor trees.
Fractions : Adding, subtracting, and converting fractions and mixed numbers.
Integers : Understanding negatives. Adding and subtracting positive and negative integers.

Beast Academy 4C is the third part of our four-part series for Level 4:

Full Color. Paperback.
112 pages. 10 7/8 x 8 3/8 inches.
ISBN: 978-1-934124-54-3
Black and White. Paperback.
168 pages. 10 7/8 x 8 3/8 inches.
ISBN: 978-1-934124-55-0

For more information, reviews, printables, and errata, visit