The results of this study aim to understand the use of Elementary Mathematics Games in Mathematics and Science Learning for PIAUD and PGMI Study Program Students during the PAUD-SD transition period. The research design used a descriptive quantitative approach with data collection techniques through questionnaire distribution. The results of the study found that: 1) Knowledge of Elementary Mathematics Games amounted to 92%; 2) the technique of using Elementary Mathematics Games in lecture activities has increased by 85%; 3) the difficulty faced in the process of using SD Mathematics Games amounted to 80%; 4) the integration technique of SD Mathematics Games is very easy to apply in activities Mathematics and Science Learning in PIAUD and PGMI Study Programs is 90%; 5) The percentage of usefulness in the use of Elementary Mathematics Games in the Mathematics and Science Learning process in the PIAUD and PGMI Study Programs is 95% with a benefit level of 76-100%. Thus, the use of Elementary Mathematics Games can be used in developing material from teaching materials for lecturers, teachers, and students in learning process activities.