Abstract
Error patterns in computation have been well researched for written computation; but there is little research into the error patterns common among students computing mentally. The responses made by 3035 students in Grades 3 to 10 were analysed and the most common errors made at each grade level ascertained. Common patterns of errors are described. Possible reasons for these errors and implications for the classroom are discussed
Alistair McIntosh
Common Errors In Mental Computation Of Students In Grades 3 – 10