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在进行有理数加法运算时,若能对算式的各项恰当地分组,会使计算过程大大简化.下面举例说明运算中的分组技巧,供同学们学习时参考.
When performing rational number addition, if the items of the formula can be properly grouped, the calculation process will be greatly simplified. The following example illustrates the grouping skills in the operation for reference when students learn.