The trachtenberg speed system of basic mathematics

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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. It looks like magic, but the rules are based on sound logic.

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.

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Trachtenberg Speed System Basic Mathemat

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Do high speed complicated arithmetic in your head using the trachtenberg speed system do high speed complicated arithmetic in your head using the trachtenberg speed system ever find yourself struggling to check a bill or a payslip with the trachtenberg speed system you can described as the sh Op voorraad. Voor 23:59 uur besteld, zaterdag in huis .. MEER INFO

Taal: en

Bindwijze: Hardcover

Oorspronkelijke releasedatum: 04 februari 1982

Aantal pagina's: 272

Illustraties: Nee

Hoofdauteur: Ann Cutler

Tweede Auteur: Rudolph McShane

Hoofduitgeverij: Praeger Publishers Inc

Eerste Vertaler: Ann Cutler

Tweede Vertaler: Rudolph Mcshane

Extra groot lettertype: Nee

Product breedte: 140 mm

Product lengte: 216 mm

Studieboek: Ja

Verpakking breedte: 140 mm

Verpakking hoogte: 21 mm

Verpakking lengte: 216 mm

Verpakkingsgewicht: 454 g

EAN: 9780313232008

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