人们在日常生活中,可以说没有一天不用到口算,尤其是一些简单的小数目的计算,用口算方便易行,灵活快速。口算是估算和笔算的基础,口算能力差,势必会影响到估算、笔算的正确和速度,影响计算技能的形成。因此要提高学生的计算能力,必须抓好口算这个基础。口算就算在高科技的今天,在社会生活仍广泛应用,口算还是笔算的基础,口算不过关,笔算绝不会有效果。口算能力的形成,要通过经常性的训练才能实现,且训练要多样化。良好的口算是正 In daily life, people can say that they do not have to spend their days without paying lip service, especially for some simple calculation of small numbers. They are easy and flexible to use. Mouth calculation is the basis for calculation and calculation, poor accounting skills, is bound to affect the estimation, calculation accuracy and speed, affecting the formation of computing skills. Therefore, to improve students’ computing ability, we must grasp this basis. Even in today’s high-tech accounts, the social life is still widely used, accounting is still the basis for calculating, I forget, the pen will never be effective. The formation of the ability to account, to be achieved through regular training, and training to be diversified. Good mouth is positive