@article{oai:kumadai.repo.nii.ac.jp:00025048,
 author = {山本, 信也 and Yamamoto, Shinya and Urakawa, Kenichirou and 山本, 信也 and 浦川, 健一郎},
 journal = {熊本大学教育実践研究},
 month = {Feb},
 note = {application/pdf, 論文(Article), One hundred and nineteen seventh-grade students were administered computational estimation tests, and paper-and-pencil computation tests four days later. The performance on paper-and-pencil computation problems : 12/13+7/8, 304.15×118.73 and 2022.92÷41.2, was analyzed in the relation to computational estimation performance. The results were as follows : 1. Although the problem of 12/13+7/8 was the easiest item on the paper-and-pencil computation test,on the computational estimation test it was the most difficult item. 2. Among the errors of 304.15×18.73 and 2022.92+41.2 on paper-and pencil computation test.there were some errors that could have been corrected if computational estimation had been used in the processes of paper-and-pencil computation.},
 pages = {19--25},
 title = {中学生の筆算計算の能力と計算見積りの能力の関連に関する研究},
 volume = {10},
 year = {1993},
 yomi = {ヤマモト, シンヤ}
}