The Trachtenberg Speed System of Basic Mathematics: The Revolutionary New Method for High-Speed Multiplication, Division, Addition, Subtraction, and Square Root.

Trachtenberg, Jakow; Cutler, Ann; McShane (Adapter), Rudolph; Cutler, Ann

Verlag: Doubleday & Company, Inc, Garden City, NY, 1960

Near Fine condition in G dust jacket. 1960 Doubleday hardcover 1st thus edition, 18th printing. The covers are in great shape though the spine ends are indented and lower corners are lightly bumped. The binding is square and tight. Interior pages are clean and unmarked. Jacket has some edge wear and tears. USPS electronic tracking number issued free of charge. The complete system of the Trachtenberg method of mathematics which makes possible high-speed arithmetical calculations with a remarkable degree of accuracy. This method is not only speedy but simple. Once one has mastered the rules, lightning calculation is as easy as reading a story. It looks like magic, but the rules are based on sound logic. Bestandsnummer des Verkäufers 14125

Bibliografische Details

Titel: The Trachtenberg Speed System of Basic ...
Verlag: Doubleday & Company, Inc, Garden City, NY
Erscheinungsdatum: 1960
Einband: Hardcover
Zustand: Very Good
Zustand des Schutzumschlags: Good
Auflage: First Edition.