Your students will get lots of practice and have fun with these FREE integer operation problems. After finding the answers, they use the clues to find the mystery number! Includes: 20 problems with 4 parts each = 80 problems (2 games) Detailed notes for the students Teacher Prep, Instructions, and Suggestions Integer Worksheet and Clue sheet Answer key #Middle School, #Upper Elementary, #Integer, #Operations, #Integer Operations, #Activity #Free