This descriptive study aims to investigate the opinions of the $4^{th}$ and $5^{th}$ grade primary school pupils about their problem solving skills. To that end, pupils opinions regarding self-confidence in problem-solving skill, self-control, and avoidance in terms of gender, grade level, and socio-economic status of their school were examined to find out whether differences existed. In this study Problem Solving Inventory for Children developed by Serin, Bulut Serin, and Saygılı (2010) was used as the data collection tool. Sample for data collection consists of $4^{th}$ and $5^{th}$ graders at urban primary schools in Sivas. The sample consisted of 1375 $4^{th}$ and $5^{th}$ graders enrolled at nine primary schools who were randomly selected through stratified sampling. Frequency, percentage, independent groups t-test, and ANOVA were used to analyze the data. While significant differences were found in the self-control and avoidance subscales, no statistically significant difference was found in the self-confidence subscale based on gender. Similarly, no significant difference was found in any subscale based on grade level, but statistically significant differences were found in all subscales related to socio-economic status of the school. Recommendations are offered in the light of the findings.