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今天,妈妈和我一起玩猜数游戏。妈妈说:“你可以在计算器上任意输入一个三位数,先乘27,得出积后再乘37。你只要把最后结果的末三位数告诉我,我马上能猜出你一开始在计算器上输入的三位数是多少?”这么厉害?我将信将疑地试了一个数,告诉妈妈:“末三位是346。”“那你一开始肯定输的是654。”妈妈很快回答了我。这么快!我还不信了,又玩了几次。我说469,她马上猜出531;我说768,她马上猜出232……·真是很神奇啊,这里面肯定有什么奥秘?妈妈神秘一笑:“那你不妨探索一下,可别指望我来告诉你峨。”首先,我很快发现我所报出的最后结果末三位数和一开始输入的三位数加起来正好是1000,妈妈肯定每次都是用1000去减我报的
Today, my mother plays guessing games with me. Mom said: “You can enter a random three-digit calculator, first multiplied by 27, and then multiplied by 37. You just tell me the last three digits of the final result, I can immediately guess you What is the beginning of the three-digit number entered in the calculator? ”So much? I will doubtlessly try a number, telling mom: “ The last three is 346. ”“ Then you definitely lose 654 . ”Mom quickly answered me. So fast! I still do not believe, and played a few times. I said 469, she immediately guessed 531; I said 768, she immediately guessed 232 ... ... really amazing ah, there must be mystery inside? Mommy mysterious smile: “Then you may wish to explore, do not count on me I’ll tell you Emei. ”First, I quickly found out that the last three digits of my final report and the three digits I entered at the beginning summed up exactly 1000, and my mum surely used 1000 to cut me off of