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口算是笔算的基础。口算能力强,笔算才能做到又对又快。由于口算时要集中注意力听清题意,记住数字,理解关系,选择算法,能培养学生的注意力,记忆力和思维能力,提高学生的思维敏捷性,因此,必须从低年级就重视口算能力的培养,加强多种形式的口算训练。在低年级教学中,根据教材内容和低年级学生的年龄特点,经常采用的口算方法有下面八种。
Mouth count is the basis for calculating. Mouth arithmetic ability, pen calculations can be done again and again. Because of the importance of oral attention when listening to the questions, remembering the numbers, understanding the relationship and choosing algorithms, which can cultivate the students 'attention, memory and thinking skills and improve students' agility in thinking, Ability to cultivate, to strengthen various forms of mouth training. In the lower grades of teaching, according to the textbook content and age characteristics of lower grades students, there are eight commonly used methods of calculating.