Need a fun way to practice adding and subtracting integers for Halloween or fall? This zombie-themed CSI math mystery is perfect for 6th grade, 7th grade, 8th grade, or even struggling 9th grade students. Students solve integer problems to unlock clues and eliminate suspects—until the zombie leader is revealed. It’s a spooky twist on reviewing positive and negative numbers with a fun storyline built in! This print-and-go integer activity works great as a Halloween math game, fall review worksh