This study was intended to describe the implementation of “guess math operations” game designed to improve students’ motivation to solve comparison problems. The study was conducted at MTs Sarji Ar Rasyid at seventh grade with 25 students as its subjects. Type of the study is Classroom Action Research. The number of cycles was two, and each cycle consisted of two face-to-face meetings. In this study, the researcher investigated the implementation of teaching activities and impact toward students motivation in solving math problems, especially in solving comparison problems. Accordingly, the collected data were the description of how the researcher implement: apperception, presenting learning objectives, motivating students, presenting students worksheet, and encouraging students playing the “guess math operation” game. The other data was students’ motivation in solving math problems, in this research was comparison problems. Data were collected through the use of observation, field notes, questionnaire, and interview. Using qualitative technique of data analysis, it can be concluded that to improve students’ motivation in solving comparison problems, there are two things that should be taken into consideration. The results of this research obtained good results and almost all the success criteria were achieved.