Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kishimoto Tadayuki,The Reality of Teaching of Decimal Division from the Point of View of Context Formed in the Learning,Tsukuba journal of educational study in mathematics,09193928,University of Tsukuba,1997-03-31,16,,17-24,https://cir.nii.ac.jp/crid/1571698601764632576,