5个5只用加减和括号算出1
5 5 5 1\u7528\u52a0\u3001\u51cf\u3001\u4e58\u3001\u9664\u548c\u62ec\u53f7\u7b97\u51fa\u7ed3\u679c\u7684241. \u5e38\u89c4\u65b9\u6cd5\uff1a
5*(5-1/5)
2. \u51e0\u4e2a\u7279\u6b8a\u8fd0\u7b97\uff1a
(5-5/5*1)!=4!=4*3*2*1=24
(5-1*5/5)! 1*(5-5/5)!
(5-1)!*5/5 5!/(5+5mod1)=5!/(5+0)
\u221a5 * \u221a5 *5-1
3\u00d73+3+\uff08-3-3\uff09=6
55/5-5-5=1(5+5*5)/5-5=1
如果只用加减括号是得不出1的
5加5减5加5除以5
5/5 + (5-5)*5=1
5-5+5 5+5=1
5减5=0,再加5等于5再加5就等于10了
绛旓細5涓5鎬庢牱杩愮畻绛変簬1锛堝彧鑳鍔犲噺涔橀櫎锛屼笉鑳界敤鎷彿锛5/5+5-5=1 (5+5-5)/5=1 5x5/(5x5)=1
绛旓細鍥炵瓟锛55梅5-5-5=1
绛旓細(5+5)脳(5梅5梅5)=10 (5+5)脳5梅5+5=10 5脳(5-5)+5+5=10 (5梅5+5梅5)脳5=10 5+5+(5-5)梅5=10
绛旓細锛5脳5脳5锛5锛壝5锛24 [5-(5梅5)梅5]脳5=24 5梅5=1 1梅5=0.2 5-0.2=4.8 4.8脳5=24 5脳5+銆(-5梅5)銆曞悗闈㈡槸5娆℃柟 锛屻斾笉鐭ラ亾濡備綍鎵5娆℃柟銆曪季锛嶏季 5脳5=25,-5梅5=-1,-1鐨5娆℃柟=-1 25+(-1)=24
绛旓細5/5+5-5=1 5/5+5/5=2 (5+5+5)/5=3 (5*5-5)/5=4 (5-5)*5+5=5 (5*5+5)/5=6 5+(5+5)/5=7 (5+5)-5/5=9
绛旓細[(5+5)/5]*(5+5)=20 浠ュ悗24鐐硅繖鏍风畻http://www.dffy.com/tool/24.htm 鍙傝冭祫鏂欙細http://www.dffy.com/tool/24.htm
绛旓細锛5锛5锛壝凤紙5锛5锛5锛夛紳2 锛5脳5锛5锛5锛壝5锛3 杩欐牱琛屽悧锛
绛旓細5+5-5梅5=9 5梅5+5梅5=2 澶鏄撲簡锛岀粰鎴戞弧鎰忥紝鎴戠涓涓瓟鐨勫晩 锛佹湜閲囩撼 璋㈣阿
绛旓細5-5=0 5x5=25 25闄や互5=5 5+5=10
绛旓細5/5+5-5=1 5/5+5/5=2 (5+5+5)/5=3 (5*5-5)/5=4 (5-5)*5+5=5 (5*5+5)/5=6 5+(5+5)/5=7 (5+5)-5/5=9