把1、2、3、4、5、6这几个数分别填在一个等边三角形的三条边上使每边三个数相加得数相等。用什么方？ 把一个等边三角形分成3个、4个、6个形状、大小完全相同的小三...
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要想得数相等，就依次取首尾。先是1，6。再是2，5。然后是3，4。
绛旓細鍏15绉 1,2,3,4 1,2,3,5 1,2,3,6 1,2,4,5 1,2,4,6 1,2,5,6 1,3,4,5 1,3,4,6 1,3,5,6 1,4,5,6 2,3,4,5 2,3,4,6 2,3,5,6 2,4,5,6 3,4,5,6
绛旓細锛堢瓟妗堜笉鍞竴锛2+3-1=4銆8+5-7=6鎴1+8-2=7銆3+6-4=5
绛旓細鎶6涓鏁板垎鎴3鍒:1 2 3 4 5 6 姣忓垪鍚勫彇涓涓灏辫兘绗﹀悎棰樻剰瑕佹眰,鎵浠ユ湁2*2*2=8绉嶄笉鍚岀殑閫夋硶 123,126,153,156,423,426,453,456
绛旓細6+1=7銆5+2=7銆4+3=7
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绛旓細9涓暟鐩镐箻涓嶆槸瀹屽叏绔嬫柟鏁帮紝濡傛灉瑕佸寘鍚3妯3绔栵紝姝ら鏃犺В銆傚彧瑕佺粡杩囦腑蹇冪殑4鏉＄嚎锛屽垯涔樼Н涓120鍗冲彲锛5鍦ㄤ腑闂淬
绛旓細鎸夋渶灏忓彲鑳芥帓鍒,璁涓闈㈢殑涓変釜鏁颁箣鍜屾槸10,鍙︿竴涓暟璇曠潃鏀 鍑犳潯鍘熷垯:1涓2涓嶈兘鍦ㄥ悓涓闈,鍙兘鏂滅潃瀵硅鏀.1涓3鏀惧湪鍚屼竴闈,涓斿瑙掓斁.涓涓暟鐨勫拰涓10,鍒欐湁1+3+6鎴1+4+5鎴2+3+5 瀵逛簬鍓嶈,鍙兘鍐嶆斁7,鎬诲拰鏄1+3+6+7=17 瀵逛簬涓棿鐨,鎴栦互鍐嶆斁6,鎬诲拰鏄1+4+5+6=16 瀵逛簬鍚庤,鍙互鍐嶆斁...
绛旓細鑻1銆4銆7鍜5鎴6锛屼綑鏁伴兘涓嶄负1,鈭5鍜6蹇呴』閮介夛紝1銆4銆7涓2锛鏈3绉嶉夋硶 鑰1,4,5,6缁勬垚4浣嶆暟鍏辨湁4*3*2*1=24绉嶏紝鈭磋繖鏍风殑鏁板叡鏈24*3=72涓
绛旓細绗涓绉:锛2 锛*锛3 锛夛紳锛6 锛夛紙 7锛夛紜锛 1锛夛紳锛8 锛夛紙 4锛夛紜锛5 锛夛紳锛9 锛夌2绉:锛6 锛/锛2 锛夛紳锛3 锛夛紙5 锛夛紜锛4 锛夛紳锛9 锛夛紙7 锛夛紜锛1锛夛紳锛8 锛夌3绉:锛 9锛-锛4 锛夛紳锛5 锛夛紙2 锛*锛 3锛夛紳锛6 锛夛紙 8锛-锛1 锛夛紳锛7 锛変互姝ょ被鎺 ...
绛旓細涓棿鐨勬暟瀛楁槸5鐒跺悗鍥涙潯绾夸笂鐨勪袱绔殑鏁板瓧鍒嗗埆鏄1锛24 銆 2锛1 2銆3锛8 銆 4锛6銆傝繖鏍峰洓鏉＄洿绾夸笂姣忎笁涓暟鐨勪箻绉兘涓120
