小学数学巧算和速算方法
在小学数学中,关于整数、小数、分数的四则运算,怎么样才能算得既快又准确呢?这就需要我们熟练地掌握计算法则和运算顺序,根据题目本身的特点,综合应用各种运算定律和性质,或利用和、差、积、商变化规律及有关运算公式,选用合理、灵活的计算方法。速算和巧算不仅能简便运算过程,化繁为简,化难为易,同时又会算得又快...
在小学数学中,关于整数、小数、分数的四则运算,怎么样才能算得既快又准确呢?这就需要我们熟练地掌握计算法则和运算顺序,根据题目本身的特点,综合应用各种运算定律和性质,或利用和、差、积、商变化规律及有关运算公式,选用合理、灵活的计算方法。速算和巧算不仅能简便运算过程,化繁为简,化难为易,同时又会算得又快...
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