Puzzles

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Unique Digits How many arithmetic problems can you make with the digits all different? 5/19/1997
CRYPTOS Find the patterns to decode the secret messages. 10/18/1997
(pattern recognition, functions)
Code Challenge 10/18/1997
XOPH Find the word with the given middle section. 10/18/1996
XOPH2 Same page, narrower format. 10/18/1996
(recall, recognition, vocabulary, working backwards)
XBOTH Find the word with a one-letter difference from two other words. 10/2/1996
XBOTH2 Same page, narrower format. 10/2/1996
(vocabulary, combinational logic)
Navajo Code Talker messages (variable-length substitution, pattern recognition) 10/22/2005
Navajo Code Talker code for above 10/22/2005
Climbing Snail problem (motion problem with several, varying conditions) 10/22/2005
Word transformation puzzle (working backwards, coordinating variables, pattern recognition) 10/22/2005
Read this and connect both sides of your brain (word problems, metaknowledge) 10/22/2005


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Notice: the above files are copyright by the author as freeware and may be copied and distributed without modification in any quantity provided that no fee is charged for them. Any other use requires prior permission. The author retains all rights to the material.

Last updated 5/19/1997 - 10/22/2005



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