五个5,用加减乘除连起来,最后等于15,符号只能用一次,可以用括号
\u4e94\u4e2a\u4e94\u600e\u4e48\u8ba1\u7b97\u53ef\u4ee5\u7b49\u4e8e12.\u53ef\u4ee5\u4f7f\u7528\u62ec\u53f7\u548c\u52a0\u51cf\u4e58\u9664\u7b26\u53f7\uff01 \u8c22\u8c22\uff0155/5+5/5=12
5+5+(5-5)*5=10
(5-(5+5)/5)*5=15(5-(5+5)/5)*5
绛旓細(5-(5+5)/5)*5=15
绛旓細5脳[5锛5梅(5脳5)]=24
绛旓細浜斾釜浜旂敤鍔犲噺涔橀櫎涔嬪悗绛変簬5
绛旓細绗竴棰橈細5 锛 5 锛 5 锛 5 锛 5 锛岋紙浜斾釜5杩愮敤鍔犲噺涔橀櫎绛夎繍绠楁硶鍒欐渶鍚庣瓑浜26锛夌浜岄; 5 , 5 , 5 ,1 (灏辨槸涓変釜浜旓紝涓涓竴锛屽彲浠ョ敤灏忔暟鐐圭瓑杩愮畻娉曞垯锛屾渶鍚庣瓑浜24)鍛靛懙锛佸悓蹇椾滑鍔犳补鎯虫兂鍟婏紒瑙f瀽:(5+5梅5梅5)脳5=26 (5-1梅5)脳5=24 ...
绛旓細5+5+(5-5)脳5=10;5+5-(5-5)梅5=10;(5脳5+5脳5)梅5=10;5X5-(5+5+5)=10;(5梅5+5梅5)X5=10.
绛旓細鏂规硶涓锛氾紙5-5梅5梅5锛壝5=24 锛涙柟娉曚簩锛 (5x5x5-5)/5=24 銆
绛旓細4. 5 = 1 + 4 杩欑缁勫悎鏂瑰紡浣跨敤浜嗗姞娉曪紝灏1鍜4鐩稿姞寰楀埌5銆5. 5 = 3 + 2 脳 1 杩欑缁勫悎鏂瑰紡浣跨敤浜嗗姞娉曞拰涔樻硶锛屽厛灏2涔樹互1寰楀埌2锛屽啀灏3鍜2鐩稿姞寰楀埌5銆6. 5 = 6 梅 3 + 4 - 1 杩欑缁勫悎鏂瑰紡浣跨敤浜鍔犲噺涔橀櫎鍥涚杩愮畻锛屽厛灏6闄や互3寰楀埌2锛屽啀灏2鍜4鐩稿姞寰楀埌6锛屾渶鍚鍑忓幓1寰楀埌5銆備互涓婃槸...
绛旓細=(5鍗5/5/5)X5=26
绛旓細(5*5-(5+5))梅5=3;
绛旓細锛5脳5脳5-5锛壝5=24 5脳锛5-5梅5梅5锛=24