歌诀是《孙子定理》的历史解法,小学生不能理解。用现在的“倍数、因数”中的知识也能解决它,思路是利用两个余数相同的条件求出答案后,再用第三个条件去验证。方法有两种,其中更有价值的一种方法是把两个余数不相同的条件放在一起,找出它们共同的余数,再用另一个条件去验证。通过演算,笔者还发现了两点:一是这类题有规律性,二是韩信利用《孙子定理》方法去点兵,有些牵强。 Song formulas are the historical solution of “grandchildren’s theorems” that pupils can not understand. With the current “multiples, factor ” knowledge can also solve it, the idea is to use the same conditions after the two remainder to find the answer, and then use the third condition to verify. There are two ways, one of the more valuable is to put two different conditions together, find their common residuals, and then use another condition to verify. Through calculation, the author also found two points: First, these questions have regularity, and second, Han Xin use “grandson theorem” method to troop, some far-fetched.