有四个有理数2,3,-4,-12,请按24点的游戏规则,写出三种不同的方法,使结果为24 现有4个有理数2、3、-4、-12,你能按上述规则写出2种不...
\u6839\u636e24\u70b9\u6e38\u620f\u89c4\u5219\uff0c\u73b0\u6709\u56db\u4e2a\u6709\u7406\u65703\uff0c4\uff0c\uff0d6\uff0c10\u8fd0\u7528\u89c4\u5f8b\uff0c\u5199\u51fa\u4e09\u79cd\u4e0d\u540c\u7684\u8fd0\u7b97\u5f0f\uff0c\u4f7f\u5176\u7ed3\u679c\u7b49\u4e8e224\u70b9\u6e38\u620f\u9898\u76ee\u30103,4,-6,10\u3011\u5171\u670942\u79cd\u7b97\u6cd5
1.
[\ufe5910\uff0b-6\ufe5a\uff0b4]\u00d73
2.
10\uff0d[\ufe593\u00d7-6\ufe5a\uff0b4]
3.
3\u00d7[4\uff0b\ufe59-6\uff0b10\ufe5a]
4.
3\u00d7[\ufe59-6\uff0b10\ufe5a\uff0b4]
5.
4\uff0d[\ufe5910\u00d7-6\ufe5a\u00f73]
6.
4\uff0d[\ufe59-6\u00d710\ufe5a\u00f73]
7.
4\uff0d[-6\u00d7\ufe5910\u00f73\ufe5a]
8.
3\u00d7[\ufe5910\uff0b-6\ufe5a\uff0b4]
9.
[10\uff0b\ufe594\uff0b-6\ufe5a]\u00d73
10.
[\ufe59-6\uff0b4\ufe5a\uff0b10]\u00d73
11.
3\u00d7[\ufe59-6\uff0b4\ufe5a\uff0b10]
12.
[3\u00d7\ufe5910\uff0d4\ufe5a]\uff0d-6
13.
[\ufe59-6\uff0b10\ufe5a\uff0b4]\u00d73
14.
[4\uff0b\ufe5910\uff0b-6\ufe5a]\u00d73
15.
10\uff0d[4\uff0b\ufe59-6\u00d73\ufe5a]
16.
[-6\uff0b\ufe5910\uff0b4\ufe5a]\u00d73
17.
[\ufe5910\uff0d4\ufe5a\u00d73]\uff0d-6
18.
3\u00d7[-6\uff0b\ufe5910\uff0b4\ufe5a]
19.
3\u00d7[10\uff0b\ufe594\uff0b-6\ufe5a]
20.
4\uff0d[10\u00d7\ufe59-6\u00f73\ufe5a]
21.
3\u00d7[-6\uff0b\ufe594\uff0b10\ufe5a]
22.
4\uff0d[10\u00f7\ufe593\u00f7-6\ufe5a]
23.
[10\uff0d\ufe59-6\u00d73\ufe5a]\uff0d4
24.
4\uff0d[\ufe59-6\u00f73\ufe5a\u00d710]
25.
\ufe5910\uff0d4\ufe5a\uff0d\ufe593\u00d7-6\ufe5a
26.
4\uff0d[\ufe5910\u00f73\ufe5a\u00d7-6]
27.
[\ufe594\uff0b-6\ufe5a\uff0b10]\u00d73
28.
3\u00d7[4\uff0b\ufe5910\uff0b-6\ufe5a]
29.
10\uff0d[4\uff0b\ufe593\u00d7-6\ufe5a]
30.
[10\uff0b\ufe59-6\uff0b4\ufe5a]\u00d73
31.
3\u00d7[10\uff0b\ufe59-6\uff0b4\ufe5a]
32.
3\u00d7[\ufe5910\uff0b4\ufe5a\uff0b-6]
33.
3\u00d7[\ufe594\uff0b-6\ufe5a\uff0b10]
34.
[-6\uff0b\ufe594\uff0b10\ufe5a]\u00d73
35.
[\ufe594\uff0b10\ufe5a\uff0b-6]\u00d73
36.
4\uff0d[-6\u00f7\ufe593\u00f710\ufe5a]
37.
10\uff0d[\ufe59-6\u00d73\ufe5a\uff0b4]
38.
[\ufe5910\uff0b4\ufe5a\uff0b-6]\u00d73
39.
[10\uff0d\ufe593\u00d7-6\ufe5a]\uff0d4
40.
3\u00d7[\ufe594\uff0b10\ufe5a\uff0b-6]
41.
[4\uff0b\ufe59-6\uff0b10\ufe5a]\u00d73
42.
\ufe5910\uff0d4\ufe5a\uff0d\ufe59-6\u00d73\ufe5a
[2x3+(-12)]x(-4)=24
[(-4)+3]x(-12)x2=24
(-12)/3*(-4-2)
[3+(-4)]*2*(-12)
2*(-4+3)*(-12)=24
绛旓細[(-9)-3]脳[2+(-4)]=(-12)脳(-2)=24 鏄庢暀涓烘偍瑙g瓟锛屽鑻ユ弧鎰,璇风偣鍑籟婊℃剰绛旀];濡傝嫢鎮ㄦ湁涓嶆弧鎰忎箣澶,璇锋寚鍑,鎴戜竴瀹氭敼姝!甯屾湜杩樻偍涓涓纭瓟澶!绁濇偍瀛︿笟杩涙!
绛旓細2X(-4)X(-9)/3=24
绛旓細3x(-1+2+7)=24 3x7+2-(-1锛=24
绛旓細杩鍥涗釜鏁鐨勫拰鏄紙2+1-1-3锛/3=-1/3 鍥犳杩欏洓涓暟鍒嗗埆鏄 -1/3-2=-7/3 -1/3-1=-4/3 -1/3-锛-1锛=2/3 -1/3-锛-3锛=8/3
绛旓細=0+4/5-1 =-1/5 鍒濅腑鏈夌悊鏁鍔犲噺娣峰悎杩愮畻璇曢 鏈夌悊鏁扮殑娣峰悎杩愮畻 鏁欏鐩爣 1.杩涗竴姝ユ帉鎻℃湁鐞嗘暟鐨勮繍婕旂畻娉曞垯鍜岃繍绠楀緥; 2.浣垮鐢熻兘澶熺啛缁冨湴鎸夋湁鐞嗘暟杩愮畻椤哄簭杩涜娣峰悎杩愮畻; 3.娉ㄦ剰鍩瑰吇瀛︾敓鐨勮繍绠楄兘鍔. 鏁欏閲嶇偣鍜岄毦鐐 閲嶇偣:鏈夌悊鏁扮殑娣峰悎杩愮畻. 闅剧偣:鍑嗙‘鍦版帉鎻℃湁鐞嗘暟鐨勮繍绠楅『搴忓拰杩愮畻涓殑绗﹀彿闂. 璇惧爞鏁欏杩...
绛旓細[2-1-锛-3锛塢脳6=24
绛旓細-1+2+3-4-5+6+7-8-9+10+11-12鈥-2005+2006+2007-2008缁欎綘涓涓墭鐩樺ぉ骞,浣犺兘寰堝揩鐭ラ亾3鍗冨厠澶уご閽堢殑鏋氭暟... 鍥涗釜鏈夌悊鏁,鍏朵腑涓変釜鏈夌悊鏁颁箣鍜屽垎鍒负2,17,-1,-3,璇曞垎鍒眰鍑鸿繖鍥涗釜鏈夌悊鏁般-1+2+3-4-5+6+7-8-9+10+11-12鈥-2005+2006+2007-2008缁欎綘涓涓墭鐩樺ぉ骞,浣犺兘寰堝揩鐭ラ亾3鍗冨厠...
绛旓細1銆佽嫢鍥涗釜鏈夌悊鏁鐨勭Н涓鸿礋锛屽垯鐢辨湁锛 锛夎礋鍥犳暟銆侫銆1涓 B銆2涓 C銆3涓 D銆1涓垨3涓 2銆侊紙鈥2锛3涓庘23锛 锛堿銆佺浉绛 B銆佷簰涓虹浉鍙嶆暟 C銆佷簰涓哄掓暟 D銆佷粬浠殑鍜屼负16 3銆佽嫢a锛0锛屽垯a涓庡畠鐨2鍊嶇殑鐩稿弽鏁扮殑宸殑缁濆鍊兼槸锛 锛堿銆乤 B銆2a C銆3a D銆佲3a 4銆佽繍绠...
绛旓細7銆佷笌绗5棰樼被浼煎垎缁勶紝鐩搁偦鍥涗釜鍒嗘垚涓缁勶紝姣忕粍鐨勫拰涓猴紞4锛屼竴鍏辨湁502缁勶紝鏁呯粨鏋滀负(锛4)脳502锛濓紞2008 8銆佸凡鐭ュ緱锛歛锛濓紞5/3锛b锛濓紞2/5 鏁呭師寮忥紳[锛5/3锛3脳(锛2/5)]/[锛5/3锛2脳(锛2/5)]锛43/13 9銆佸钩鏂圭瓑浜庣珛鏂圭殑鏁版湁锛1銆侊紞1銆0锛夛紝绔嬫柟绛変簬-8鐨勬暟鏄紙锛2锛夈10銆佸鏋...
绛旓細璁捐繖鍥涗釜鏈夌悊鏁涓哄垎鍒负x,y,z,w,鍒欐湁 x+y+z=2 y+z+w=17 x+z+w=-1 x+y+w=-3 灏嗕互涓婂洓涓柟绋嬪乏鍙充袱杈瑰垎鍒浉鍔,寰3(x+y+z+w)=15.鎵浠+y+z+w=5,鍐嶅皢鍘熸潵鐨勫洓涓柟绋嬪垎鍒唬鍏+y+z+w=5寰,x=-12 y=6 z=8 w=3 ...