100十99十98一97十96十95一94一93…请帮忙算一算 100一99一98十97十96一95一94十……十4一3一2...
99\u534198\u4e0097\u534196\u534195\u4e0094\u534193\u534192\u4e0091\u5341⋯⋯3\u53412\u4e001\u7b54\u684899\u3002
\u5206\u6790\uff1a
100-99-98+97=0\uff08\u6bcf4\u9879=0 \uff09
100\u9879\u4e2d\uff0c\u5171\u6709 25\u7ec4 \u3002\u5373\uff1a25\u4e2a0\u76f8\u52a0
\u6240\u4ee5\uff1a
\u539f\u5f0f= 25\u00d70=0
=(100-98)+(99-97)+(96-94)+(95-03)+...+(4-2)+(3-1)
=2+2+2+2+...+2+2
=2×50
=100
绛旓細=锛100-99锛+锛98-97锛+锛96-95锛+鈥︹+锛4-3锛+锛2-1锛=50 瑙ｆ硶鍒嗘瀽锛氱粍椤癸紝杞寲涓50涓1鐩稿姞鐨勯棶棰樸傝姹備竴鍒楁暟鐨勫拰锛屼竴鑸绘槸杞寲涓虹瓑宸紝绛夋瘮锛屾垨鑰呭彲浠ユ眰鍜岀殑鏁板垪褰㈠紡锛屽彲浠ョ敤瑁傞」娉曪紝閿欎綅鐩稿噺娉曪紝鍊掑簭鐩稿姞娉曠瓑銆
绛旓細鍥炵瓟锛氫綘鐪100鍗98鍗佸埌2鈥橀兘鏄樊2,鐢98鍗2,96鍗4閭ｅ姞鍒版渶鍚庨兘鏄暣鏁100,寰楁暟涓嶅姩,鍦ㄥ幓鐪嬪噺鐨99鍗1,97鍗3鍒版渶鍚庣敤鍓嶈竟鐩稿姞鎬诲拰鍑忓悗杈圭浉鍔犳诲拰鎳備簡?
绛旓細99鍗1=100 涓庝竴98涓2=涓100鍚岀悊鐩镐簰鎶垫秷锛屼綑涓100鍜50鏃犳硶鎶垫秷锛屽垯100+50=150
绛旓細=锛100-99锛+锛98-97锛+96-95...+4-3+2-1 =锛100-99锛+锛98-97锛+锛96-95锛+鈥︹+锛4-3锛+锛2-1锛=1+1+1+鈥︹+1+1 =1脳50=50 鎶宸э細鍒╃敤鍔犳硶缁撳悎寰嬭绠楋紝鐢辨瘡涓や釜鏁扮殑宸兘涓1杩欎釜鐐癸紝鍙互寰堢畝渚垮湴璁＄畻鍑鸿寮忓瓙銆傚姞鍑忔硶缁撳悎寰嬶細a+b+c=a+(b+c)=(a+b)+c ...
绛旓細鍘熷紡=锛100-99锛+锛98-97锛+锛96-95锛+鈥︹+锛4-3锛+锛2-1锛=1脳50 =50 璇烽噰绾筹紝璋㈣阿锛
绛旓細100-99+98-97+96-95+鈥+4-3+2-1锛=锛100-99锛+锛98-97锛+锛96-95锛+鈥+锛4-3锛+锛2-1锛夛紝=1+1+1+鈥+1+1锛=1脳50锛=50锛
绛旓細鍥犱负浣犵湅 100-99=1 1+98=99锛堝氨鏄100-1锛99-97=2 2+96=98锛100-2锛98-97=1 96+1=97锛100-3锛...閭ｄ箞鏈鍚庝細100-(100-1)娆★紝鍙互寰楀嚭 100-(100-1)=100-99 =1 绛旀鏄1
绛旓細100鍗锛99鍗1锛夊崄锛98鍗2锛変互娆℃帹浜100X50鍗50浜5O5o
绛旓細鏍规嵁99-98-97+96=0鍙煡浠99涓鐩村埌4涓棿鍏ㄤ负0 鎵浠 鍘熷紡=100+3-2-1=100
绛旓細100+99-98-97鈥+4+3-2-1鍙畝鍖栦负 鍥涚粍鏁板瓧鐩稿姞鐩稿噺鐨25娆″彲鍐欎负寮忓瓙 (100+99-98-97)x25 =4脳25 =100 涔熷彲浠ュ啓鎴愬紡瀛 (4+3-2-1)脳25 =4x25 =100
