Title: The association between children’s numerical magnitude processing and mental multi-digit subtraction
Authors: Linsen, Sarah ×
Verschaffel, Lieven
Reynvoet, Bert
De Smedt, Bert #
Issue Date: 2014
Publisher: North-Holland
Series Title: Acta Psychologica vol:145 pages:75-83
Abstract: Children apply various strategies to mentally solve multi-digit subtraction problems and the efficient use of some of them may depend more or less on numerical magnitude processing. For example, the indirect addition strategy (solving 72–67 as “how much do I have to add up to 67 to get 72?”), which is particularly efficient when the two given numbers are close to each other, requires to determine the proximity of these two numbers, a process that may depend on numerical magnitude processing. In the present study, children completed a numerical magnitude comparison task and a numberline estimation task, both in a symbolic and non-symbolic format, to measure their numerical magnitude processing. We administered a multi-digit subtraction task,in which half of the items were specifically designed to elicit indirect addition. Partial correlational analyses, controlling for intellectual ability and motor speed, revealed significant associations between numerical magnitude processing and mental multi-digit subtraction. Additional analyses indicated that numerical magnitude processing was particularly important for those items for which the use of indirect addition is expected to be most efficient.Although this association was observed for both symbolic and nonsymbolic tasks, the strongest associations were found for the symbolic format, and they seemed to be more prominent on numerical magnitude comparison than on number line estimation.
ISSN: 0001-6918
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Parenting and Special Education
Instructional Psychology and Technology
Faculty of Psychology and Educational Sciences, Campus Kulak Kortrijk – miscellaneous
Faculty of Psychology and Educational Sciences - miscellaneous
× corresponding author
# (joint) last author

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