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Alma R. Cardi

Author of The Trachtenberg Speed System of Basic Mathematics

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The Trachtenberg Speed System of Basic Mathematics (1960) — Designer, some editions — 427 copies, 5 reviews

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addition (3) arithmetic (13) arithmetics (3) basic math (3) biography (4) Box 104 (2) calculation (4) counting (3) ebook (2) education (6) English (2) math (110) mental arithmetic (2) mental_maths (1) monograph (3) non-fiction (22) number theory (4) popular mathematics (3) pure mathematics (3) Q-Science_QA_Computers (1) recreational mathematics (3) reference (9) Rochemenault (3) science (14) SCIENCE/MATHS (1) speed math (6) T(rachtenberg) (1) to-read (5) Trachtenberg (4) unread (4)

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