Abstract
This paper examines the influence certain number combinations have on children’s ability
to abstract arithmetic structure. The study replicates an investigation of Israeli and
Canadian students, which found that certain number combinations significantly influenced
the order in which operations are performed. Seventy-six Australian children participated in
the study. The results indicated that, while the number combinations did not significantly
influence the order in which the Australian children performed the operations, many
exhibited misconceptions that reflected a very procedural approach to mathematics.
Implications are drawn for the introduction of mental computation and early algebraic
understanding in the early years of schooling.