   Operations of the Numbers of Arithmetic [Algebra a Modern Introduction Booklet 3] (Paperback) ISBN-13: 9780201039795 ISBN-10: 0201039796 ?  Measures Ratio and Averages [Algebra a Modern Introduction Booklet 5] (Paperback) ISBN-13: 9780201039818 ISBN-10: 0201039818 ?  Numbers of Ordinary Arithmetic and Algebra [Algebra, a Modern Introduction] (Paperback) ISBN-13: 9780201039825 ISBN-10: 0201039826 ? |
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