Mathematical abilities are a constellation of different skills and abilities, such as general intellectual abilities, executive functions, verbal and spatial abilities. With the aim of determining the relation between adaptive behavior and mathematical achievements in children with mild intellectual disabilities, a sample was selected consisting of 90 children of both genders, aged between 10 and 13.11, IQ 50-70. Information on adaptive skills was acquired from standardized interviews with special education teachers, by applying the 1st part of AAMR Scale of adaptive functioning. One-way analysis of variance, Scheffe Post Hoc Tests of arithmetic mean differences, and x2 test were used in statistical data processing. It was concluded that th...