CTK Exchange
Front Page
Movie shortcuts
Personal info
Awards
Reciprocal links
Terms of use
Privacy Policy

Interactive Activities

Cut The Knot!
MSET99 Talk
Games & Puzzles
Arithmetic/Algebra
Geometry
Probability
Eye Opener
Analog Gadgets
Inventor's Paradox
Did you know?...
Proofs
Math as Language
Things Impossible
My Logo
Math Poll
Other Math sit's
Guest book
News sit's

Recommend this site
Manifesto: what CTK is about |Store| Search CTK Buying a book is a commitment to learning Table of content Things you can find on CTK Chronology of updates Email to Cut The Knot Recommend this page

CTK Exchange

Subject: "Just For Fun! Magic Square"     Previous Topic | Next Topic
Printer-friendly copy     Email this topic to a friend    
Conferences The CTK Exchange Early math Topic #54
Reading Topic #54
DoubleE
guest
 Jan-09-04, 04:32 PM (EST)
 
"Just For Fun! Magic Square"
 
   Another fun, first grade "challenge" problem. We've already solved this, can you??


Magic Square

Use the numbers 1-9.

Each row (horizontal, vertical, and diagonal) must add up to 15.


X X X
X 5 X
X X X


  Alert | IP Printer-friendly page | Reply | Reply With Quote | Top
alexb
Charter Member
1188 posts		 Jan-09-04, 04:35 PM (EST)
Click to EMail alexb Click to send private message to alexb Click to view user profileClick to add this user to your buddy list  
1. "RE: Just For Fun! Magic Square"
In response to message #0
 
   Here, too, it is redundant to specify 5 in the middle. Do you see why?


  Alert | IP Printer-friendly page | Reply | Reply With Quote | Top
Punit Pagi
guest
 Jan-15-04, 11:52 AM (EST)
 
2. "RE: Just For Fun! Magic Square"
In response to message #0
 
   the solution is very simple it is the first Magic Square that can be formed

816
357
492


  Alert | IP Printer-friendly page | Reply | Reply With Quote | Top
kiran
guest
 Jan-19-04, 11:18 AM (EST)
 
3. "RE: Just For Fun! Magic Square"
In response to message #0
 
   Its Quite simple. Solution can be obtained in seconds.

Solution is : 8 3 4
1 5 7
6 7 2


  Alert | IP Printer-friendly page | Reply | Reply With Quote | Top
alexb
Charter Member
1188 posts		 Jan-19-04, 11:21 AM (EST)
Click to EMail alexb Click to send private message to alexb Click to view user profileClick to add this user to your buddy list  
4. "RE: Just For Fun! Magic Square"
In response to message #3
 
   >Its Quite simple. Solution can be obtained in seconds.
>

We'll call you "A few seconds guy". Want to share your speedy approach?


  Alert | IP Printer-friendly page | Reply | Reply With Quote | Top
Jeff
guest
 Jan-22-04, 02:47 PM (EST)
 
5. "RE: Just For Fun! Magic Square"
In response to message #4
 
   Not to worry you guys, but my 4 year old son can make a 4 by 4 magic square, naming the numbers in any mix of 4 languages.


  Alert | IP Printer-friendly page | Reply | Reply With Quote | Top

Conferences | Forums | Topics | Previous Topic | Next Topic

You may be curious to have a look at the old CTK Exchange archive.
Please do not post there.

|Front page| |Contents|

Copyright © 1996-2018 Alexander Bogomolny

71537105