Game includes a set of 16 "I Have, Who Has?" cards. Cards are cut out, may be laminated, and are handed out randomly to students. A student will have the "START OF THE GAME" card and will read the problem aloud: "Find the GCF of ___ and ___". All other students will figure out the GCF and see if they have the answer card. That student will shout out the answer and proceed by reading the problem on his/her card. Game will continue until the "END OF GAME" card is reached. All cards consist of whole numbers less than 100.