四个5怎么算等于5？ 四个五怎么才能等于五？
4\u4e2a5\u600e\u4e48\u7b97\u7b49\u4e8e55 5 5 5=5\uff0c\u6709\u591a\u79cd\u8ba1\u7b97\u7b26\u53f7\u586b\u6cd5\uff0c\u89e3\u6790\u5982\u4e0b\uff1a
1\u30015+5x\uff085-5\uff09
=5+5x0
=5
2\u30015-5x\uff085-5\uff09
=5-5x0
=5
3\u3001-5x\uff085-5\uff09+5
=-5x0+5
=5
\u6269\u5c55\u8d44\u6599
\u8fd0\u7b97\u6cd5\u5219
1\u3001\u52a0\u6cd5\u4ea4\u6362\u5f8b
\u4e24\u4e2a\u6570\u76f8\u52a0\uff0c\u4ea4\u6362\u52a0\u6570\u7684\u4f4d\u7f6e\uff0c\u548c\u4e0d\u53d8\u3002 a+b=b+a
2\u3001\u52a0\u6cd5\u7ed3\u5408\u5f8b
\u4e09\u4e2a\u6570\u76f8\u52a0\uff0c\u5148\u628a\u524d\u4e24\u4e2a\u6570\u76f8\u52a0\uff0c\u6216\u8005\u5148\u628a\u540e\u4e24\u4e2a\u6570\u76f8\u52a0\uff0c\u548c\u4e0d\u53d8\u3002 (a+b)+c=a+(b+c)
3\u3001\u51cf\u6cd5\u7ed3\u5408\u5f8b
\u4e00\u4e2a\u6570\u8fde\u7eed\u51cf\u53bb\u4e24\u4e2a\u6570\uff0c\u53ef\u4ee5\u5148\u628a\u540e\u4e24\u4e2a\u6570\u76f8\u52a0\uff0c\u518d\u76f8\u51cf\u3002a-b-c=a-\uff08b+c\uff09
4\u3001\u4e58\u6cd5\u4ea4\u6362\u5f8b
\u4e24\u4e2a\u6570\u76f8\u4e58\uff0c\u4ea4\u6362\u56e0\u6570\u7684\u4f4d\u7f6e\uff0c\u79ef\u4e0d\u53d8\u3002ab=ba
5\u3001\u4e58\u6cd5\u7ed3\u5408\u5f8b
\u4e09\u4e2a\u6570\u76f8\u4e58\uff0c\u53ef\u4ee5\u5148\u4e58\u524d\u4e24\u4e2a\u6570\uff0c\u6216\u8005\u5148\u4e58\u540e\u4e24\u4e2a\u6570\uff0c\u79ef\u4e0d\u53d8\u3002 (ab)c=a(bc)
6\u3001\u4e58\u6cd5\u5206\u914d\u5f8b
\u5206\u914d\u5f8b\u662f\u4e58\u6cd5\u8fd0\u7b97\u7684\u4e00\u79cd\u7b80\u4fbf\u8fd0\u7b97\uff0c\u53ef\u7528\u4e8e\u5206\u6570\u3001\u5c0f\u6570\u4e2d\u3002\u4e3b\u8981\u516c\u5f0f\u4e3a(a+b)c=ac+bc\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u8fd0\u7b97\u5b9a\u5f8b
5+(5-5)*5=5
4个5，利用添加括号加减乘的符号计算：5+（5-5）×5=5，这道题目中先算括号中的（5-5）等于0，0x5是乘法在算术中乘法要先算，0乘任何数都是0，那5+0就等于5(5–5)÷5+5=5
5+5×(5–5)=5
5+（5-5）×5=5
5+（5-5）x5=5
5—（5—5）x5=5
5x（5—5）+5=5
绛旓細4涓5锛鍒╃敤娣诲姞鎷彿鍔犲噺涔樼殑绗﹀彿璁＄畻锛5+锛5-5锛壝5=5锛岃繖閬撻鐩腑鍏堢畻鎷彿涓殑锛5-5锛夌瓑浜0锛0x5鏄箻娉曞湪绠楁湳涓箻娉曡鍏堢畻锛0涔樹换浣曟暟閮芥槸0锛岄偅5+0灏辩瓑浜5
绛旓細5+(5-5)*5=5
绛旓細1銆乴g锛5+5锛-5掳+5=lg10-1+5=1-1+5=5 瑙ｉ鎬濊矾锛歭g10鏄寚浠10涓哄簳锛10鐨勫鏁般傚洜涓10=10鐨勪竴娆℃柟锛屾墍浠g10=1锛涢浂鎸囨暟锛歛º=1 (a鈮0)锛涚患鍚堢畻寮忛噷濡傛灉鏈夋嫭鍙凤紝瑕佸厛绠楁嫭鍙烽噷鐨勬暟锛堜笉绠″畠鏄粈涔堢骇鐨勶紝閮借鍏堢畻锛夛紝鐒跺悗鍔犲噺娉曞钩琛岃繍绠楋紝鏈缁堝緱鍒扮粨鏋5銆2銆侊紙5-5锛墄5+5=0x...
绛旓細5 - 5 = 0, 0/5 = 0, 0 + 5 = 5, 5*5 = 25 [-/+*]5 - 5 = 0, 0/5 = 0, 0*5 = 0, 0 + 5 = 5 [-/*+]5*5 = 25, 25+5 = 30, 30-5 = 25, 25/5 = 5 [*+-/]5*5 = 25, 25+5 = 30, 30/5 = 6, 6 - 5 = 1 [*+/-]5*5 = 25...
绛旓細锛5锛5锛5锛壝5锛3 锛5脳5锛5锛壝5锛4 5锛嬶紙5锛5锛壝5锛5 锛5脳5锛5锛壝5锛6 鍔犲噺涔橀櫎娉曟槸鍩烘湰鐨勫洓鍒欒繍绠楋紝绗﹀彿渚濇涓衡+锛嵜椕封濓紝鍦ㄦ病鏈夋嫭鍙风殑鎯呭喌涓嬶紝杩愮畻椤哄簭涓哄厛涔橀櫎锛屽啀鍔犲噺銆傚湪鏈夋嫭鍙风殑鎯呭喌涓嬶紝杩愮畻椤哄簭涓哄厛鎵ц鎷彿閲岀殑杩愮畻锛屽悗鎵ц鎷彿澶栫殑杩愮畻銆傚悇鑷粛淇濇寔鍏堜箻闄わ紝鍐嶅姞鍑忋
绛旓細瑙ｏ細5梅5+5梅5=2 锛5+5+5锛壝5=3 锛5x5-5锛壝5=4 5-锛5-5锛墄5=5 锛5x5+5锛壝5=6
绛旓細4銆=5-锛5-5掳-5掳锛=5-锛5-1-1锛=5-3 =2 5銆5梅5+5梅5 =1+1 =2 6銆乴g5梅lg5+lg5梅lg5 =1梅1+1梅1 =1+1 =2 1銆5梅5+5梅5=22銆佽В锛3銆5 5 5 5=2锛岃繖涓彲浠ユ湁澶氱濉繍绠楃鍙锋柟娉曪紝渚嬪锛4銆5-锛5-5掳-5掳锛5銆=5-锛5-1-1锛6銆=5-37銆=28銆5梅5...
绛旓細鍥涗釜4鍑嗙‘鐨勭瓟妗堝簲璇ユ槸16銆備綘浠湁鍥涗釜4鎬庝箞鏍风瓑浜5鍛紵1銆 鏈鍚庡緱鍒5銆4鍜5鐨勫叧绯伙紝鍒╃敤4脳5=20锛屽線杩欐柟鍚戝垎鏋愬氨鍙互銆2銆 鏋勫缓涓涓20鏈鍚庨櫎4锛屽氨绛変簬5銆3銆 4*4+4姝ｅソ绛変簬20銆4銆 濡傛槸绛旀锛4脳4+4锛壝4銆備互涓婄殑灏辨槸鍏充簬鍥涗釜4鎬庝箞鏍风瓑浜5鐨勫唴瀹逛粙缁嶄簡銆
绛旓細(5*5-5)*5=100 (5+5)*(5+5) =100
绛旓細4涓5鐩稿姞绛変簬20璇讳綔锛氫簲鍔犱簲鍔犱簲鍔浜旂瓑浜浜屽崄銆傜畻寮忓啓浣滐細5+5+5+5=20銆傜畻寮忎腑鐨勨5鈥濆嚭鐜颁簡鍥涙锛岀О涓虹浉鍚屽姞鏁帮紝鏁伴噺涓鍏辨湁4涓紝杩欑鐗规畩鐨勭浉鍚屽姞鏁扮殑鍔犳硶绠楀紡鍙互鍐欏仛涔樻硶绠楀紡锛岃鍋氾細4脳5=20銆傚疄鏁扮殑鍔犳硶鎬ц川锛氬悓鍙蜂袱鏁扮浉鍔狅紝鍙栦笌鍔犳暟鐩稿悓鐨勭鍙凤紝骞舵妸缁濆鍊肩浉鍔犮傚紓鍙蜂袱鏁扮浉鍔狅紝鍙栫粷瀵瑰...
