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学习了数的整除这一节后,班里都由数学小博士慧慧给大家出了这样一道题:“有这样一个三位数,加上自身一个数字的10倍,和一定能够被11整除,商等于自身一个数字的11倍。……”做惯了抢答题的小明争先恐后地说:“阿慧,这个数好找!它是……”“我还没有说完呢!这个三位数加上自身一个数字的9倍,其和既能被12整除,又能被15整除。当然,被12整除时,商等于自身一个数字的10倍;被15整除时,商等于自身一个数字的8倍。”
Learn the number of divisions In addition to this section, the class by the mathematics Ph.D. Hui Hui to everyone out of a question: “There is such a three-digit, plus a 10 times their own numbers, and must be able to be 11 Divide, the business is equal to 11 times its own number .... ”Used to grab the answer Xiao Ming scrambling to say: “ Ah Hui, the number of good looking! It is ... ”“ I have not finished yet ! This three-digit plus nine times its own number, the sum can be divisible by 12, but also divisible by 15. Of course, divided by 12, the quotient is equal to 10 times its own number; divisible by 15, the quotient Equal to eight times its own number. ”