Beast Academy 2CBeast Academy provides a fun, rigorous, challenging, complete curriculum for aspiring math beasts. Beast Academy Level 2C includes chapters on: Measurement: The measurement chapter only includes measuring Length, and includes using a ruler, estimation, customary and metric units, conversions, mixed measures, and adding and subtracting. Strategies: Rearranging additions and subtraction, canceling, almost canceling, subtracting everything at once, using