解一道具有一定难度的数学题,刚开始也许会感到束手无策,但是,如果认真分析题设中所给出的条件,寻找条件与结论之间的内在联系,进行从已知到未知的沟通,就会找到解决问题的思路.下面以一道2011年江苏赛区初赛整除试题为例来探究它的解法. Solving a math problem with a certain degree of difficulty may feel helpless at the beginning, but if you carefully analyze the conditions given in the test, look for the internal relations between the conditions and the conclusions, and conduct the communication from known to unknown, Will find a solution to the problem ideas below to a 2011 Jiangsu Division preliminary round divisions test as an example to explore its solution.