  1997 - Subtraction with Regrouping (Paperback) ISBN-13: 9780887243936 ISBN-10: 0887243932 Genre: Science & Math ?   Multiplication Basic Facts (Paperback) ISBN-13: 9780887244629 ISBN-10: 0887244629 Genre: Science & Math ?   June July Fullcolor Monthly Activities for Grades 13 (Paperback) ISBN-13: 9780887245572 ISBN-10: 0887245579 Genre: Nonfiction ? |
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