About Erika's Rock Collection

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Erika's Rock Collection

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Author: Elisabeth and Stephen Baseman and Chamberlain
Description: Math Fundamentals, difficulty level 2. Find out how many rocks Erika has collected over the years.
Please Note: Use of the following materials requires membership. Please see the Problem of the Week membership page for more information.
 
Problem page: /library/go.html?destination=889
Solution page: Problem #889

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