加强口算训练康轶君提高计算水平口算在经济、社会活动和日常生活中的应用极为广泛。即使在计算工具高度发展的将来，口算仍是每个人必须具备的基本技能。同时口算是笔算、估算和简便计算的基础，也是计算能力的重要组成部分，口算是小学数学教学的一项基本任务，因此，数... To strengthen the port count training Kang Yi-jun to improve the level of computing I count in the economy, social activities and daily life in a very wide range of applications. Even in the future where computational tools are highly developed, accounting is still the basic skill that everyone has to possess. In the meantime, accounting is the basis for calculating, estimating, and calculating conveniently, and also an important part of computing power. It is a basic task of elementary mathematics teaching that ...