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Callahan, Leroy G.; Charles, Desiree – Focus on Learning Problems in Mathematics, 1985
Previous studies indicate that many early elementary school children have the misconception that whole number subtraction is a commutative operation. The degree and character of this subtraction error was investigated in this longitudinal study. Results obtained from three groups of students with different number abilities provided further…
Descriptors: Arithmetic, Cognitive Processes, Elementary Education, Elementary School Mathematics
