This is a bundle of our GCF mystery picture task cards and greatest common factor worksheets. The worksheets can be used as a review, pre-test, assessment, quiz, or practice resource. The task cards and color-by-number/code puzzle can be used as a fun math center/station, early finisher, homework, sub-plan, or project. These are suited for students in 5th, 6th, and 7th grades. I. GCF TASK CARDS/FLIP CARDSKids love solving mysteries, and they will enjoy uncovering the mystery picture after answe