用+,-,x,÷,( )等運算符把5,5,5,1 四個數字姐成一條算式,結果成為24...
thx
合共24的算式
2008-05-22 5:51 am
回答 (6)
2008-05-23 7:34 am
✔ 最佳答案
因為有3個5，先搵出24同5既關係好可能係解題既關鍵。24 = 5 x 4.8
因為淨番2個5同1個1，如果可以繼續搵出4.8同5既關係就最好不過。
4.8 = 5 - 0.2
餘下既1同5，可唔可以得出0.2呢？
1/5 = 0.2
綜合以上，可得：
24 = 5 x 4.8
24 = 5 x (5 - 0.2)
24 = 5 x (5 - 1/5)
答案就係 5 x (5 - 1/5) = 24//
2008-05-24 3:13 am
答得好好
2008-05-23 5:33 am
simple,
becaus there are 3 '5'
so we need to find a "4.8"to multiply that "5"
and 5-1/5=4.8,
so 5x(5-1/5)=24
becaus there are 3 '5'
so we need to find a "4.8"to multiply that "5"
and 5-1/5=4.8,
so 5x(5-1/5)=24
2008-05-23 1:17 am
答案就係:
5x(5-1/5)
=5x5-5x1/5
=25-1
=24
其實好多人都以為係唔得既，因為佢地唔識用分數來計，只係識用「加減乘除」...
只要多動腦筋，就可以計到!!
5x(5-1/5)
=5x5-5x1/5
=25-1
=24
其實好多人都以為係唔得既，因為佢地唔識用分數來計，只係識用「加減乘除」...
只要多動腦筋，就可以計到!!
2008-05-22 6:01 am
5*(5-1/5)=24
5*(5-1/5)=24
5*(5-1/5)=24
5*(5-1/5)=24
5*(5-1/5)=24
5*(5-1/5)=24
5*(5-1/5)=24
5*(5-1/5)=24
5*(5-1/5)=24
收錄日期: 2021-04-13 15:35:38
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https://hk.answers.yahoo.com/question/index?qid=20080521000051KK02863