Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2005-10-11 09:33:30
- MathsIsFun
- Administrator
- Registered: 2005-01-21
- Posts: 7,713
Make 28
I got a request by email from "yvonne" which asks:
im trying to see if i can make 28 out of 2 3 5 8 and using only + - % x can it be done thank you
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
Offline
#2 2005-10-11 10:28:05
- Zach
- Member
- Registered: 2005-03-23
- Posts: 2,075
Re: Make 28
Lemme think.
Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.
Offline
#3 2005-10-11 10:44:45
- Zach
- Member
- Registered: 2005-03-23
- Posts: 2,075
Re: Make 28
2 + 8 = 10 x 3 = 30
- 5% = 28.5
That's the closest I got.
Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.
Offline
#4 2005-10-11 19:11:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: Make 28
I don't know if its allowed:-
38 - (2 x 5)
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5 2005-10-12 05:07:43
- Zach
- Member
- Registered: 2005-03-23
- Posts: 2,075
Re: Make 28
I don't think it'd be allowed, but I ammended mine.
I used 8 twice. ¬.¬
Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.
Offline
#6 2005-10-12 23:04:15
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Make 28
(5 - (3/2))*8 = 28.
Go me.
Why did the vector cross the road?
It wanted to be normal.
Offline
#7 2005-10-13 06:12:50
- Zach
- Member
- Registered: 2005-03-23
- Posts: 2,075
Re: Make 28
Silence!
Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.
Offline
#8 2005-10-18 18:42:52
- insomnia
- Real Member
- Registered: 2005-03-23
- Posts: 944
Re: Make 28
Look zach, you're not the best at maths just face.
Friends are angels who lift our feet when our own wings have trouble remembering how to fly
Offline
#9 2005-10-18 20:15:30
- justlookingforthemoment
- Moderator
- Registered: 2005-05-26
- Posts: 2,161
Re: Make 28
Look, insomnia, you're not the best at re-reading your posts just face.
Offline
#10 2005-10-18 21:23:28
- MathsIsFun
- Administrator
- Registered: 2005-01-21
- Posts: 7,713
Re: Make 28
LOL ... this is just getting.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
Offline
#11 2005-10-18 21:37:00
- justlookingforthemoment
- Moderator
- Registered: 2005-05-26
- Posts: 2,161
Re: Make 28
I know...but maybe it's just.
Offline
#12 2005-10-18 21:39:00
- insomnia
- Real Member
- Registered: 2005-03-23
- Posts: 944
Re: Make 28
I do re-read my posts but can never be asked to edit them. My post is supposed to say:
Look Zach, you're not the best at maths, just face it.
Friends are angels who lift our feet when our own wings have trouble remembering how to fly
Offline
#13 2005-10-18 21:43:10
- justlookingforthemoment
- Moderator
- Registered: 2005-05-26
- Posts: 2,161
Re: Make 28
But now that you're a mod you can secretely edit them... in the forums you moderate. Which isn't this one. So I'll let you off. 
Offline
#14 2005-10-19 00:44:26
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Make 28
Yes, secretely editing things is fun. Oops, I'm supposed to be silent.
[Zach is power-crazed]
Why did the vector cross the road?
It wanted to be normal.
Offline
#15 2005-11-27 07:30:55
- Wanna be math wiz
- Member
- Registered: 2005-11-24
- Posts: 38
Re: Make 28
(5 - (3/2))*8 = 28.
Go me.
Mathsyperson is division allowed?
i thought you could only use +-%x?
Imagination is more important than knowledge
Offline
#16 2005-11-27 08:02:17
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Make 28
I assumed that when "yvonne" said %, she meant ÷, because % can't be used in any useful way anyway.
Why did the vector cross the road?
It wanted to be normal.
Offline
#17 2005-11-27 09:16:52
- Wanna be math wiz
- Member
- Registered: 2005-11-24
- Posts: 38
Re: Make 28
yeah your right, was just wondering.
Imagination is more important than knowledge
Offline
#18 2005-11-27 10:08:26
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Make 28
OK then, wondering is good. Nice avatar and signature, by the way.
Why did the vector cross the road?
It wanted to be normal.
Offline
#19 2005-11-28 08:34:08
- Wanna be math wiz
- Member
- Registered: 2005-11-24
- Posts: 38
Re: Make 28
thanks mathsyperson 
Imagination is more important than knowledge
Offline
#20 2005-11-29 04:21:17
- Wanna be math wiz
- Member
- Registered: 2005-11-24
- Posts: 38
Re: Make 28
you got a good signature too
Imagination is more important than knowledge
Offline
Pages: 1