“Addition” is one of main basic mathematical concepts that children learn. This concept is learned by students at the preschools level both informally and formally. There are some research findings that show that students make mainly three types of errors, such as Systematic errors, Random errors and Careless errors. Students make these types of errors relation to the concept of “Addition”. This paper examines the error patterns common with “Addition “in second years of schooling (grade 2/7 years old students). The gender wise differences in “Addition” are examined and analyzed; examined also patterns of “Addition” in the sample age group. The need for further in-depth research in the area of primary grade mathematics is highlighted.
Keywords: Addition Pre-school, Primary school, Essential Learning Competencies