CTK Exchange
Front Page
Movie shortcuts
Personal info
Awards
Reciprocal links
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

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

CTK Exchange

Subject: "Star of David brain teaser"     Previous Topic | Next Topic
Printer-friendly copy     Email this topic to a friend    
Conferences The CTK Exchange Middle school Topic #10
Reading Topic #10
Donna Scarborough
Charter Member
Oct-21-00, 12:09 PM (EST)
Click to EMail Donna%20Scarborough Click to send private message to Donna%20Scarborough Click to add this user to your buddy list  
"Star of David brain teaser"
 
   Draw a star of David. At each intersection or angle, draw a circle. In each circle belongs a number. There will be twelve circles and you must use the numbers 1,2,3...12 in each circle only once. Each sequence of four numbers must add up to the same number. I have been trying to figure this one out for awhile. Can you help me? Many thanks. Donna


  Alert | IP Printer-friendly page | Edit | Reply | Reply With Quote | Top
alexb
Charter Member
672 posts
Oct-21-00, 12:11 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: Star of David brain teaser"
In response to message #0
 
  

10
4 7 9 6
8 5
1 11 12 2
3


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

Conferences | Forums | Topics | Previous Topic | Next Topic

You may be curious to visit the old CTK Exchange archive.

|Front page| |Contents|

Copyright © 1996-2018 Alexander Bogomolny

[an error occurred while processing this directive]
 Advertise

New Books
Second editions of J. Conway's classic On Numbers And Games and the inimitable Winning Ways for Your Mathematical Plays