The reason is that mastery of the abacus requires quick hands, sharp eyes, mental acuity and keen hearing, important skills which have prompted many parents to add the abacus to the list of their children's extracurricular activities.
原因是學珠算必須手到、眼到、心到、耳到，許多家長已將「珠算」列入孩子的「才藝」課程之一。