This research was conducted with the aim to determine the effect of quartet card games towards the numeracy ability of adding 1-10 for intellectual disability students in the grade III SDLB. This study used an experimental research model pre-post design. The conclusion of this quasi-time-series experimental method is that the quartet card game can improve the numeracy ability of adding 1-10 for students with intellectual disability in the grade III SDLB.
                        
                        
                        
                        
                            
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