四个五怎么等于四 四个5用符号怎么等于5
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
\u6709\u4ee5\u4e0b\u4e09\u79cd\u8868\u8fbe\u5f62\u5f0f\uff1a
1\u3001lg\uff085+5\uff09-5\u00b0+5=lg10-1+5=1-1+5=5
\u89e3\u9898\u601d\u8def\uff1alg10\u662f\u6307\u4ee510\u4e3a\u5e95\uff0c10\u7684\u5bf9\u6570\u3002\u56e0\u4e3a10=10\u7684\u4e00\u6b21\u65b9\uff0c\u6240\u4ee5lg10=1\uff1b\u96f6\u6307\u6570\uff1aaº=1 (a\u22600)\uff1b\u7efc\u5408\u7b97\u5f0f\u91cc\u5982\u679c\u6709\u62ec\u53f7\uff0c\u8981\u5148\u7b97\u62ec\u53f7\u91cc\u7684\u6570\uff08\u4e0d\u7ba1\u5b83\u662f\u4ec0\u4e48\u7ea7\u7684\uff0c\u90fd\u8981\u5148\u7b97\uff09\uff0c\u7136\u540e\u52a0\u51cf\u6cd5\u5e73\u884c\u8fd0\u7b97\uff0c\u6700\u7ec8\u5f97\u5230\u7ed3\u679c5\u3002
2\u3001\uff085-5\uff09x5+5=0x5+5=0+5=5
3\u30015+\uff085-5\uff09x5=5+0x5=5+0=5
2\u30013\u3001\u7684\u89e3\u9898\u601d\u8def\u76f8\u540c\uff1a0\u4e58\u4ee5\u4efb\u4f55\u6570\u90fd\u7b49\u4e8e0\uff1b\u7efc\u5408\u7b97\u5f0f\u91cc\u5982\u679c\u6709\u62ec\u53f7\uff0c\u8981\u5148\u7b97\u62ec\u53f7\u91cc\u7684\u6570\uff08\u4e0d\u7ba1\u5b83\u662f\u4ec0\u4e48\u7ea7\u7684\uff0c\u90fd\u8981\u5148\u7b97\uff09\u3002\u7136\u540e\u56e0\u4e3a\u4e00\u7ea7\u8fd0\u7b97\u548c\u4e8c\u7ea7\u8fd0\u7b97\uff0c\u540c\u65f6\u6709\uff0c\u6240\u6709\u5148\u7b97\u4e8c\u7ea7\u8fd0\u7b97\uff0c\u5373\u5148\u7b97\u4e58\u6cd5\u8fd0\u7b97\uff0c\u6700\u540e\u8fdb\u884c\u52a0\u6cd5\u8fd0\u7b97\uff0c\u5f97\u51fa\u7ed3\u679c5\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u5728\u56db\u4e2a5\u4e4b\u95f4\u52a0\u4e0a\u8fd0\u7b97\u7b26\u53f7\u4f7f\u7ed3\u679c\u7b49\u4e8e0\u30011\u30012\u30013\u30014\u30015\u30016\u30017
1\u30015+5-5-5=0
2\u30015x5\u00f75\u00f75=1
3\u30015/5+5/5=2
4\u30015-\uff085+5\uff09/5=3
5\u3001\uff085x5-5\uff09/5=4
6\u3001\uff085-5\uff09x5+5=5
7\u3001\uff085x5+5\uff09/5=6
8\u3001\uff085+5\uff09/5+5=7
\u7efc\u5408\u7b97\u5f0f\uff08\u56db\u5219\u8fd0\u7b97\uff09\u5e94\u5f53\u6ce8\u610f\u7684\u5730\u65b9\uff1a
1\u3001\u5982\u679c\u53ea\u6709\u52a0\u548c\u51cf\u6216\u8005\u53ea\u6709\u4e58\u548c\u9664\uff0c\u4ece\u5de6\u5f80\u53f3\u8ba1\u7b97\uff0c\u4f8b\u5982\uff1a2+1-1=2\uff0c\u5148\u7b972+1\u7684\u5f97\u6570\uff0c2+1\u7684\u5f97\u6570\u518d\u51cf1\u3002
2\u3001\u5982\u679c\u4e00\u7ea7\u8fd0\u7b97\u548c\u4e8c\u7ea7\u8fd0\u7b97\uff0c\u540c\u65f6\u6709\uff0c\u5148\u7b97\u4e8c\u7ea7\u8fd0\u7b97\u3002
3\u3001\u5982\u679c\u4e00\u7ea7\uff0c\u4e8c\u7ea7\uff0c\u4e09\u7ea7\u8fd0\u7b97\uff08\u5373\u4e58\u65b9\u3001\u5f00\u65b9\u548c\u5bf9\u6570\u8fd0\u7b97\uff09\u540c\u65f6\u6709\uff0c\u5148\u7b97\u4e09\u7ea7\u8fd0\u7b97\u518d\u7b97\u5176\u4ed6\u4e24\u7ea7\u3002
4\u3001\u5982\u679c\u6709\u62ec\u53f7\uff0c\u8981\u5148\u7b97\u62ec\u53f7\u91cc\u7684\u6570\uff08\u4e0d\u7ba1\u5b83\u662f\u4ec0\u4e48\u7ea7\u7684\uff0c\u90fd\u8981\u5148\u7b97\uff09\u3002
5\u3001\u5728\u62ec\u53f7\u91cc\u9762\uff0c\u4e5f\u8981\u5148\u7b97\u4e09\u7ea7\uff0c\u7136\u540e\u5230\u4e8c\u7ea7\u3001\u4e00\u7ea7\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1\u2014\u2014\u56db\u5219\u8fd0\u7b97
绛旓細5-5脳5梅5
绛旓細锛5脳5-5锛壝5=4
绛旓細锛5X5-5锛壝5=4
绛旓細浜斻4x4梅(鈭4+鈭4)=16梅4=4 鍏佲垰4梅鈭4x鈭4x鈭4=1x2x2=4 涓冦4-4+鈭4+鈭4=0+2+2=4
绛旓細涓変釜浜旀庝箞绠楃瓑浜4锛岃繖閬撻涓昏鑰冨療鐨勬槸鎴戜滑鍥涘垯杩愮畻娉曞垯涓殑闄ゆ硶鍜屽噺娉曡繍绠楁硶鍒欙紝鎴戜滑鍙互鐢ㄦ暟瀛﹁〃杈惧紡鍒楀紡琛ㄧず锛5-5/5=5-1=4銆
绛旓細4涓5鐩稿姞闄や互5
绛旓細鍥涗釜浜旀庝箞绛変簬45.鏂规硶濂界畝鍗曘傜瓟妗堝涓:55-锛5+5锛夛紳55-10 锛45
绛旓細5-5梅5+5-5=4
绛旓細鎮ㄥソ锛4涓4鎬庝箞绛変簬4锛氾紙4-4锛墄 4+4=4 瑙i姝ラ锛氾紙4-4锛墄 4+4 =0 x 4+4 =4 鏈涢噰绾筹紝璋㈣阿
绛旓細"4涓5"鍜"2"涔嬮棿骞舵病鏈夌洿鎺ョ殑鏁板杩愮畻鍏崇郴锛屼絾鏄鏋滃皢瀹冧滑璇讳綔涓枃姹夊瓧锛屽氨鏈変簡涓涓皭闊崇殑鑱旂郴銆"4涓5"鍙互璇讳綔"鍥涗釜浜"锛岃"2"鍙互璇讳綔"浜"銆傝繖涓や釜璇嶈鐨勫彂闊抽潪甯哥浉浼硷紝鍥犳灏变骇鐢熶簡璋愰煶鐨勬晥鏋溿傚洜姝わ紝杩欓亾璋滆鐨勭瓟妗堟槸锛"4涓5"绛変簬"2"鐨勬⒌鏂囪闊"浜氬"锛圓do锛夛紝涔熷彲浠ュ康浣"闃块亾"锛...