The purpose for this study was to investigate and compare the numerical skills of fifth grade students signed up for non-formal two types educational institutions of Basic Education Community Schools (BECS) and feeder schools of the National Commission for Human Development (NCHD). The fundamental objective of this study was to research and examine the essential numerical skills of students of the both institution and to analyze the performance of school students. The Quantitative research design with survey method was used based on pilot testing. The study's sample comprised of 84 students currently enrolled of both males and females genders at the fifth grade level from four haphazardly chosen schools of the previously mentioned organizations which are situated in Islamabad capital of Pakistan. The purposive random sampling method was used and collected data from the sample individuals through a self-created achievement test. The findings of the study showed that the students of BECS were more capable and have improved results than the students of the feeder schools of NCHD. The study suggested that the students of both BECS and feeder schools of NCHD may similarly be dealt with. The instructors might be given opportunity and trainings for their continuous professional development. The numerical skills development program might be created in light of the society's necessities as well as on present trends globally.