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有理数的运算是初中数学中的基础运算,熟练地掌握有关的运算技巧,巧妙地运用有关数学方法,是提高运算速度和准确性的必要保证.下面介绍一些运算技巧.
The operation of rational numbers is a basic operation in junior high school mathematics. Proficient in mastering the relevant computational skills and skillfully using related mathematical methods are necessary guarantees for improving the speed and accuracy of calculations. Here are some operational techniques.