{"product_id":"the-trachtenberg-speed-system-of-basic-mathematics-by-trachtenberg-jakow","title":"The Trachtenberg Speed System of Basic Mathematics by Ann Cutler","description":"\u003cp\u003eDo high-speed, complicated arithmetic in your head using the Trachtenberg Speed System.\u003c\/p\u003e\u003cp\u003eEver 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 system only requires the ability to count from one to eleven. Using a series of simplified keys it allows anyone to master calculations, giving greater speed, ease in handling numbers and increased accuracy.\u003c\/p\u003e\u003cp\u003eJakow Trachtenberg believed that everyone is born with phenomenal abilities to calculate. He devised a set of rules that allows every child to make multiplication, division, addition, subtraction and square-root calculations with unerring accuracy and at remarkable speed. It is the perfect way to gain confidence with numbers.\u003c\/p\u003e","brand":"Book Express","offers":[{"title":"Default Title","offer_id":67734174302282,"sku":"7078y","price":10.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0618\/9101\/8826\/files\/7078y.jpg?v=1792381709","url":"https:\/\/www.bookexpress.nz\/products\/the-trachtenberg-speed-system-of-basic-mathematics-by-trachtenberg-jakow","provider":"Book Express","version":"1.0","type":"link"}