Long Division Error Analysis Bundle | Grade 4–5 Help your students become math detectives! This engaging, detective-themed bundle includes 5 long division error analysis case files designed to help upper elementary students identify, explain, and correct common division mistakes. Instead of simply solving problems, students analyze incorrect solutions, uncover the mistake, and solve each case correctly to “close the file.” Skills Covered: ✔ Remainder rules ✔ Zero placeholders in the quotient