Crossnumber puzzle (figure logic)
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http://alfunstuff.com/crossnumbers.php  


Alfredo Baratta  
Cross figure puzzles to print or play online. Also known as figure logic puzzles, cross figure puzzles resemble crosswords in structure, but with entries consisting of numbers rather than words, and clues based on math questions, e.g., "1 Across: The number of trailing zeros of 26266!" and "13 Down: The number of seconds in 71104 minutes."  


Levels:  Middle School (68) 
Languages:  English 
Resource Types:  Problems/Puzzles, Recreations, Web Interactive/Java 
Math Topics:  Arithmetic/Early Math 
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