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恐怖的数学题
100个7组成一个100位数,它除以13的余数是几?
人气:436 ℃ 时间:2020-04-20 19:58:48
解答
7/13=...777/13=5...12777/13/=59...107777/13=598...377777/13=5982...11777777/13=59829...07777777/13=598290...777777777/13=5982905...12777777777/13=59829059...10由此得出,商的规律是7,12,10,3,11,0,7,12,10...
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