1,11,21,1112,2113,3112,211213,问下一个数是多少?这题的规律到底是什么?
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![1,11,21,1112,2113,3112,211213,问下一个数是多少?这题的规律到底是什么?](/uploads/image/z/1261913-41-3.jpg?t=1%2C11%2C21%2C1112%2C2113%2C3112%2C211213%2C%E9%97%AE%E4%B8%8B%E4%B8%80%E4%B8%AA%E6%95%B0%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E8%BF%99%E9%A2%98%E7%9A%84%E8%A7%84%E5%BE%8B%E5%88%B0%E5%BA%95%E6%98%AF%E4%BB%80%E4%B9%88%3F)
1,11,21,1112,2113,3112,211213,问下一个数是多少?这题的规律到底是什么?
1,11,21,1112,2113,3112,211213,问下一个数是多少?这题的规律到底是什么?
1,11,21,1112,2113,3112,211213,问下一个数是多少?这题的规律到底是什么?
1,11,21,1112,2113,3112,211213,312213,212223,114213,31121314,41122314,31221324,21322314,21322314,21322314,21322314,21322314,21322314,21322314,21322314,21322314,21322314,21322314,21322314,21322314,21322314
1,11,21,1112,2113,3112,211213,问下一个数是多少?这题的规律到底是什么?
找规律,以1 11 21 1112 3112 211213 ”有什么规律?说明理由,
1+11+21+31+.+101+111
1 /6×11+1/11×16+1/16×21+1/21×26+1/26×31+1/31×36 =
计算 (1/11+1/21+1/31+1/41)*(1/21+1/31+1/41+1/51)-(1/11+1/21+1/31+1/41+1/51)*(1/21+1/31+1/41)
(1/11+1/21+1/31+1/41)*(1/21+1/31+1/41+1/51)-(1/11+1/21+1/31+1/41+1/51)*(1/21+1/31+1/41)老师要方法啊.
(1/11+1/21+1/31++1/41)*(1/21+1/31++1/41+1/51)-(1/11+1/21+1/31+1/41+1/51)*(1/21+1/31+1/41)=?
怎样巧算1+11+21+31+...+101+111
1+11+21+31+41+51+61+71+81+9
1+10+11+20+21+30+31+40.2001+2010=?
(1/11+1/21+1/31+1/41)*(1/21+1/31+1/41+1/51)-(1/11+1/21+1/31+1/41+/51)*(1/21+1/31+1/41)
下列数阵中有100个数,和是多少?11 12 13.19 20 12 13 14 .20 2113 14 15 .21 22.
(1/11+1/20+1/31+1/40)*(1/21+1/30+1/41+1/50)-(1/11+1/21+1/31+1/41+1/51)*(1/21+1/31+1/41)=?
计算1/(6*11)+1/(11*16)+1/(16*21)+1/(21*26)+1/(26*31)+1/(31*36)=
1112
x-11x+31x-21
11-4+6-9+31*21=
关于火柴移动的问题,移动一根火柴14+1=1112-2+7=11