The Trachtenberg Speed System of Basic Mathematics - Jakow Trachtenberg - Paperback Bog - Profile Books Ltd - 1989 - Engelsk - Booktok.dk

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 ''shorthand of mathematics'', the Trachtenberg

Varenr.:

142776

Levering:

1-3 dage

Oplysningerne kommer fra Booktoks aktuelle produktdata.