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#1 2007-09-06 06:40:30

ravenous
Guest

Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

Please help me with this tricky thing.

5 5 5 5 = 8 and you have to +-/* in between to make 8

Anyone know how to solve or how to do it...


Thanks

#2 2007-09-06 07:58:00

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,905

Re: Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

You can't do it without brackets:
































































Last edited by krassi_holmz (2007-09-06 08:04:49)


IPBLE:  Increasing Performance By Lowering Expectations.

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#3 2007-09-06 08:16:10

ravenous
Guest

Re: Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

I think brackets are allowed - any ideas ?

Thanks

#4 2007-09-06 08:17:45

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

Last edited by JaneFairfax (2007-09-06 08:18:29)

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#5 2007-09-06 08:20:20

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

he wasn't allowed factorial, only +-*/


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The End Of All Things To Come.

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#6 2007-09-06 08:51:54

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,711

Re: Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

Is this a variation on Four Fours ?

Can we go 1 to 100 ?


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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#7 2007-09-06 09:02:04

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,905

Re: Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

I tried the brackets, no solution!


IPBLE:  Increasing Performance By Lowering Expectations.

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#8 2007-09-06 09:25:47

ravenous
Guest

Re: Please help: 5(+-/*)5(+-/*)5(+-/*)5 = 8 ???

Im not sure 100% myself of the full rules but I got this that works:

5*.5+5.5 = 8

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