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Author: Robert Reys [ All ]

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  Title Copies
Mental Math in the Primary Grades 01614 
Year: 1988 
ISBN: 0866514341 
ISBN 13: 9780866514347 
 1 
Number SENSE: Simple Effective Number Sense Experiences, Grades 1-2 
Year: 1997 
ISBN: 1572322616 
ISBN 13: 9781572322615 
 2 
Number SENSE: Simple Effective Number Sense Experiences, Grades 3-4 
Year: 1997 
ISBN: 1572322624 
ISBN 13: 9781572322622 
 2 
Number SENSE: Simple Effective Number Sense Experiences, Grades 6-8 
Year: 1997 
ISBN: 1572322640 
ISBN 13: 9781572322646 
 5