Our special thanks to Richard Askey, Professor of Mathematics (University of Wisconsin, Madison), Yoram Sagher, Professor of Mathematics (University of Illinois, Chicago), and Madge Goldman, President (Gabriella and Paul Rosenbaum Foundation), for their indispensable advice and suggestions in the production of the Primary Mathematics U.S. Edition. Please note that the Primary Mathematics Standards Edition textbooks, workbooks, guides, and tests cannot be used interchangeably with the Primary Mathematics U.S. Edition textbooks, workbooks, and guides.
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