The ability to understand the concept of multiplication is very much needed by second grade elementary school students, but the reality in the field is that students' ability to understand the concept of multiplication counting is still low. The use of the game method with the development of KarPan Pintar learning media is one solution to this solution. This study aims to: develop learning media in the form of KarPan Pintar (1) describe the needs of learning media " Smart KarPan" the perceptions of students and teachers, (2) describe the feasibility test of learning media " Smart KarPan", (3) describe the effectiveness of learning media "Smart KarPan". This research is a development research (R&D). In this study, seven stages were used, namely: (1) potential and problem analysis, (2) information collection, (3) product design, (4) design validation, (5) design revision, (6) product trial (7) product revision. The KarPan Pintar game-based learning media also received a positive response with a percentage of 93% of the overall score of the students. The data analysis technique used t-test. The results of the hypothesis test show that there is a significant difference between the experimental class and the control class, so it can be said that the development of game-based numeracy learning media using multiplication smart karpan is very feasible and has an effect on the ability of multiplication counting concepts for grade II elementary school students. The final result of this research is a prototype of the KarPan Pintar Multiplication Mathematics teaching aid for elementary school students.