NO PREP Halloween math activities for 2nd and 3rd grade students. Just print and go! These October Math Challenges are perfect for advanced second and third grade kids. Includes 26 challenge and brain teaser activities for math centers, math homework, early finishers, problem of the week, math enrichment, or small groups. FUN for kids and EASY for teachers! Click for details. #halloween #math #secondgrade #thirdgrade #education #elementaryeducation #tpt