The study investigated effect of cognitive engagement games on academic performance of pupils with hearing impairment in mathematics in primary schools in Imo State. Quasi experiment of nonrandomized pretest posttest design was adopted for the study. Three research objectives, and hypotheses were formulated which guided the study. The research utilized two experimental groups; cognitive engagement card game and cognitive engagement macula board-seed game, a control group while the sample size was 104 pupils with hearing impairment from three intact classes. The two experiment groups were engaged in mathematical games; cognitive engagement card and cognitive engagement macula board-seed game while the control group was taught with the use of convention method. The instrument titled Mathematics Operation and Application Performance Test MOAPT with a total of 20 questions, 5 questions from each of the four topics of the lesson was used. ANCOVA statistics was used in testing the research hypotheses at 0.05 level of significance. The results revealed that pupils engaged in both cognitive engagement card and cognitive engagement macula board-seed games had higher performance scores than the control group. The game methods were found to be the most effective in improving pupils’ performance in mathematics.