“简便计算”应注意的问题曲靖市教研室文素琴义务教育六年制小学数学第八册第二单元，对整数和四则运算的基础知识进行了概括和总结，并安排了“简便运算”，学好整数四则运算中的简便运算，既可以提高计算速度又可以培养学生思维的灵活性，为今后学习小数、分数四则运算... “Simple calculation” should pay attention to the problem Qujing City Department Wen Suqin compulsory education six-year elementary school mathematics eighth unit second unit, the basic knowledge of the integer and four operations were summarized and summarized, and arranged a “simple operation” Learn four simple integer arithmetic operations, both to improve the speed of computing can also cultivate the flexibility of students thinking for the future to learn the decimal, fractional four arithmetic ...