child, right-handed schoolchild hesitantly solves difficult task of adding numbers, 5th grade student writes down numbers in

task righthanded student mathematical child written writes school hand difficult mistakes math numbers lessons pen education schoolchild adding example schoolboy notebook writing elementary schooling knowledge calligraphy distance learning learn study routine childhood person lifestyle caucasian homework home people young paper table word workspace work solves abilities right-handed hesitantly 5th grade down development concept