1-9数字用加减法算只能用一次，不能反着用，最后等于十四 1到9，9个数字中用加减法，每个数字只能用一次，怎样才能等于...
\u80fd\u5426\u5c06\u6570\u5b571\u5230\u6570\u5b579\u7528\u52a0\u51cf\u6cd5\u7b97\u51fa\u7b49\u4e8e16?12+3-4+5-6+7+8-9=16
-12-34+56+7+8-9=16
\u4ece\u9898\u76ee\u89c2\u5bdf1\u52309\u4e3a\uff1a1\uff0c2\uff0c3\uff0c4\uff0c5\uff0c6\uff0c7\uff0c8\uff0c9\uff0c\u5176\u4e2d\u67095\u4e2a\u5947\u6570\uff0c4\u4e2a\u5076\u6570
\u6570\u5b57\u76f8\u52a0\uff08\u51cf\uff09\u7684\u6027\u8d28\uff08\u6211\u4eec\u77e5\u9053\u80fd\u88ab2\u6574\u9664\u7684\u662f\u5076\u6570\uff09\uff1a
1\u3001\u5076\u6570+\u5076\u6570+\u2026\u2026\u5076\u6570=\u5076\u6570\uff08\u4e0d\u7ba1\u51e0\u4e2a\uff09\uff08\u56e0\u4e3a\u4e58\u6cd5\u5206\u914d\u5f8b\u53ef\u4ee5\u63d0\u51fa2\uff09\u81ea\u7136\u80fd\u88ab2\u6574\u9664
2\u3001\u5947\u6570+\u2026\u2026+\u5947\u6570=\u5076\u6570\uff08\u5fc5\u987b\u662f\u5076\u6570\u4e2a\u5947\u6570\uff09\uff08\u56e0\u4e3a\u5947\u6570\u4e0d\u80fd\u88ab2\u6574\u9664\uff0c\u56e0\u6b64\u53ef\u4ee5\u770b\u4f5c\u4f59\u65701\u76f8\u52a0\uff0c\u53731+1+1\uff0c\u52a0\u4e86n\u4e2a1\uff0cn\u4e3a\u5076\u6570\u81ea\u7136\u53ef\u4ee5\u88ab2\u6574\u9664\uff09
\u800c16\u662f\u5076\u6570\uff0c\u6240\u4ee5\u53ea\u80fd\u662f\u5076\u6570\u4e2a\u5947\u6570\u76f8\u52a0\uff0c\u800c1-9\u67095\u4e2a\u5947\u6570\u3002
\u6240\u4ee5\uff1a
1\uff0c\u4e0d\u505a\u5904\u7406\u7684\u60c5\u51b5\u4e0b\uff0c1-9\u65e0\u6cd5\u5f97\u51fa16
2\u3001\u5904\u7406\u4e00\u4e2a\u5947\u65701\uff0c3\uff0c5\uff0c7\uff0c9\u4e2d\u4e00\u4e2a\uff0c\u5904\u7406\u65b9\u5f0f\u4e0e\u524d\u9762\u6216\u540e\u9762\u5408\u6210\u5341\u4f4d\u6570
\u6bd4\u5982\u5904\u74061\uff0c\u90a3\u4e48\u5f53\u53d8\u621012\uff0c3\uff0c4\uff0c5\uff0c6\uff0c7\uff0c8\uff0c9\uff0c\u53ef\u4ee5\u8ba1\u7b97\uff0c\u5df2\u77e53+5+8=16
\u90a3\u6211\u53ea\u898112\uff0c4\uff0c6\uff0c7\uff0c9\u5f97\u51fa0\u5373\u53ef\uff0c
\u90a3\u4e4812+3-4+5-6+7+8-9=16\u6ee1\u8db3\uff01
\u5982\u679c\u5904\u74063\uff0c\u90a3\u4e481\uff0c2\uff0c34\uff0c5\uff0c6\uff0c7\uff0c8\uff0c9\uff0c34-16=18\uff0c\u6240\u4ee5\u8981\u6ee1\u8db3\u6761\u4ef6\u9700\u89811\uff0c2\uff0c5\uff0c6\uff0c7\uff0c8\uff0c9\u5f97\u51fa18\uff0c\u6211\u4eec\u77e5\u905318\u80fd\u88ab3\u6574\u9664\uff0c\u4f461\uff0c2\uff0c5\uff0c6\uff0c7\uff0c8\uff0c9\u96643\u7684\u4f59\u6570\u76f8\u52a0\u65e0\u6cd5\u9664\u4ee53\uff0c\u6240\u4ee5\u8fd9\u4e2a\u65f6\u5019\u4e0d\u80fd\u5b9e\u73b0
\u5982\u679c\u5904\u74065\uff0c\u52191\uff0c2\uff0c3\uff0c4\uff0c56\uff0c7\uff0c8\uff0c9\uff0c56-16=40\uff0c1\uff0c2\uff0c3\uff0c4\uff0c7\uff0c8\uff0c9\u9700\u8981\u8fbe\u523040\uff0c40\u80fd\u88ab5\u6574\u9664\uff0c\u4f461\uff0c2\uff0c3\uff0c4\uff0c5\uff0c7\uff0c8\uff0c9\u4f59\u6570\u76f8\u52a0\u6216\u76f8\u51cf\uff0c\u65e0\u6cd5\u88ab5\u6574\u9664
\u5982\u679c\u5904\u74067\uff0c\u52191\uff0c2\uff0c3\uff0c4\uff0c5\uff0c6\uff0c78\uff0c9\uff0c78-16=62\uff0c1\uff0c2\uff0c3\uff0c4\uff0c5\uff0c6\uff0c9\u5373\u4f7f\u76f8\u52a0\u4e5f\u8fbe\u4e0d\u523062\uff0c\u4e0d\u884c
9\u65e0\u6cd5\u5904\u7406\uff0c\u56e0\u4e3a\u540e\u9762\u6ca1\u6709\u6570\u5b57
2\u3001\u5904\u74062\u4e2a\u5947\u6570\uff0c3\u4e2a\u5947\u6570\u76f8\u52a0\u8fd8\u662f\u5947\u6570\u4e0d\u7b26\u5408\u9898\u610f
3\u3001\u5904\u74063\u4e2a\u5947\u6570\uff0c\u5904\u74061\uff0c3\uff0c5\uff0c\u521912\uff0c34\uff0c56\uff0c7\uff0c8\uff0c9\uff0c56-12-34=10\uff0c\u53ea\u89817\uff0c8\uff0c9\u7b97\u51fa6\u5373\u53ef\uff0c\u800c7+8-9=6
\u6240\u4ee5-12-34+56+7+8-9=16
\u5904\u74061\uff0c3\uff0c7\u521912\uff0c34\uff0c5\uff0c6\uff0c78\uff0c9\uff0c\u7531\u4e8e78\u6570\u5b57\u8f83\u5927\u5927\u4e8e1+\u2026\u20269\uff0c\u6240\u4ee578\u8981\u5f80\u4e0b\u51cf
78-34-12=16\uff0c\u4f465\uff0c6\uff0c9\u65e0\u6cd5\u7b97\u51fa0\uff0c
\u5904\u74061\uff0c5\uff0c7\u521912\uff0c3\uff0c4\uff0c56\uff0c78\uff0c9\uff0c\u4e5f\u65e0\u6cd5\u7b97\u51fa78-56=22\uff0c22-16=6\uff0c12\uff0c3\uff0c4\uff0c9\u4f59\u6570\u76f8\u52a0\u4e0d\u80fd\u88ab3\u9664
\u5904\u74063\uff0c5\uff0c7\u52191\uff0c2\uff0c34\uff0c56\uff0c78\uff0c9\u4e5f\u65e0\u6cd5\u7b97\u51fa
3\uff0c\u5904\u74064\u548c5\u90fd\u4e0d\u884c
\u5982\u679c\u4e3a3\u4f4d\uff0c\u9700\u8981\u81f3\u5c11\u5904\u7406
\u8fd8\u6709\u5176\u4ed6\u7684\u60c5\u51b5\u4f1a\u51fa\u73b0\uff0c\u5728\u8fd9\u91cc\u5c31\u4e0d\u591a\u8bb2
91+2+3+4+5+8-6-7=100
91+2+3+4+6+7-5-8=100\u597d\u591a\u5462
4×5+3+2+1-9+8-7+6=24
绛旓細2锛夊洜涓衡鍙兘鐢ㄤ竴娆鈥濓紝涓嶈兘閲嶅锛屽洜姝わ紝涓嶈兘鏈鏁板瓧1 鎸夌収娆¤寰嬩粠鎵撳埌灏忔帓鏌ワ細13鈥斺旀渶澶э紝鏃犲洜寮忥紝銆愪粎鍔犲噺娉銆12鈥斺2*3锛3*4锛屽姞鍑忔硶 11鈥斺斿ぇ鏁帮紝鏈韩鏃犲洜寮忥紝涔熸棤娉曟垚涓12锛13鐨勫洜寮忥紝鍥犳銆愪粎鍔犲噺娉曘10鈥斺2*5锛屽姞鍑忔硶 9鈥斺旀棤娉曞垎瑙ｆ垚3*3锛屽洜姝ゅ彧鑳藉嚭鐜板湪鍔犲噺娉曚腑銆傘愪粎鍔犲噺娉...
绛旓細鍒嗘瀽123456789涓湁4鍋5濂囷紝鑰屼笁涓畻寮忎竴濂囦竴鍋讹紝鎵浠ョ涓変釜绠楀紡蹇呬负涓ゅ銆9-8=1 2+7=9 5-3=2 1+6=7
绛旓細姝ら鏃犺В銆1鍒9涓鍏卞洓涓伓鏁帮紝浜斾釜濂囨暟銆鍔犲噺娉绠楀紡锛屽繀鐒舵槸涓変釜鏁閮芥槸鍋舵暟锛屾垨鑰呬袱涓鏁颁竴涓伓鏁帮紝鎵浠ユ棤娉曟弧瓒冲皢4涓伓鏁板拰5涓鏁板畨缃湪3涓鍔犲噺娉绠楀紡涓
绛旓細1-2+3+4+5+6+7+8-9
绛旓細12-11+10-9+8-7+6-5-4+3-2=1 12-11+10+9+8-7-6-5-4-3-2=1 12+11-10+9-8-7-6+5-4-3+2=1
绛旓細鍙互鍒楃畻寮忎负锛氾紙28梅14锛壝楋紙75-63锛+0锛岀粨鏋滀负24銆1銆佺畻寮忎腑搴旇鍏璁＄畻鎷彿鍐呯殑绠楀紡锛28梅14=2锛75-63=12銆2銆佺劧鍚庡湪璁＄畻鎷彿澶栫殑杩愮畻锛2脳12+0锛屽厛璁＄畻涔樻硶杩愮畻锛岀劧鍚庤绠楀姞娉曡繍绠楋紝鏈缁堢粨鏋滀负24銆3銆佽劚寮忚绠椾负锛氾紙28梅14锛壝楋紙75-63锛+0=2脳12+0=24+0=24銆
绛旓細鏉′欢3鎺掗櫎2銆5锛屽垯鍓╀笅锛8-6=2锛6-4=2锛3-1=2 B銆佸亣璁炬潯浠2+5=7锛屽悓鏃舵弧瓒虫潯浠2涓殑1+8=9锛鏁板瓧鐨勫敮涓鎬ф帓闄2銆5銆1銆8锛屾潯浠1銆佹潯浠3鍓╀笅浠ヤ笅鍙兘鍖归厤鐨勬暟缁勶細鏉′欢1鍐嶆帓闄1銆8锛屽垯鍓╀笅锛7-6=1锛4-3=1 鏉′欢2鍐嶆帓闄1銆8锛屽垯鍓╀笅锛6-4=2 鍓╀笅鐨勬潯浠1涓庢潯浠3涓棤娉曟弧瓒虫暟瀛...
绛旓細1+2+3+4+5+6+7+8+9=45,(45-20)/2=12.5鏄皬鏁,鎵浠ユ棰樻棤瑙.
绛旓細锛4锛-锛1锛=锛5锛-锛2锛=锛6锛-锛3锛夊垎鏋愯繖閬撻鐩氨鏄冨療鐨鍔犲噺娉锛屾湁123456鍏釜鏁锛屼袱涓ょ浉鍔犵浉绛夛紝浜庢槸鍙緱锛氫袱涓ょ浉鍔犵瓑浜1鍔犲埌6闄や互3=21/3=7锛屽張瑙傚療鏄123456鍑犱釜杩炵画鐨勮嚜鐒舵暟锛岃繛缁殑鑷劧鏁扮浉宸槸1锛岀敱姝ゅ彲寰楋紙4锛-锛1锛=锛5锛-锛2锛=锛6锛-锛3锛...
绛旓細鏂规涓殑鏁板瓧渚濇濉啓锛1+8=2+7=3+6=4+5=9+0 銆愯В鏋愩戞湰棰樿冩煡鐨勬槸鍔犳硶杩愮畻锛10浠ュ唴鍔犳硶璁＄畻锛夈傚洜涓轰粠0-9锛屽悗闈㈢殑鏁伴愭笎姣斿墠闈㈢殑鏁板ぇ涓锛屾墍浠ュ皢棣栧熬鐩稿姞鍗冲彲寰楀嚭绛旀涓猴細1+8=2+7=3+6=4+5=9+0锛屽搴斿～绌哄嵆鍙10浠ュ唴鍔犲噺娉瑕佺墷璁帮細鈥9瑕1鈥濄佲8瑕2鈥濄佲7瑕3鈥濄佲6瑕4鈥濄佲...
