4th grade math challenges to test your kids or students proficiency on how well they are with their math curriculum or to prepare them for the examinations. Parents and teachers can schedule the diverse number of math activities in fourth grade such as operations and algebraic thinking (OA), number and operations in base ten (NBT), number and operations - fractions (NF), measurement and data (MD) and geometry (G) to assess the proficiency of kid, student or overall classroom.