The purpose of this study was to evaluate the effectiveness and impact of gamification intervention on students' multiplication and division skills in integers. The study aimed to determine the significant difference between students' pretest and post-test scores. A pre-experimental research design was utilized to assess the intervention's effectiveness. Data was collected from 89 students in grade 7 at Baltazar Nicor Valenzuela National High School, selected through purposive sampling. Pretest and post-test assessments were employed for data gathering. The findings revealed a substantial improvement in scores, with the mean percentage score increasing from 25.35% (Low) before the intervention to 59.85% (High) after the intervention. This significant difference indicates a highly positive impact of the gamification for mastery intervention on students' skills in multiplying and dividing integers. The results suggest that the intervention effectively enhances students' multiplication and division skills in integers.