BRATS11 – B11 & bday method | English Edition

Understand calculations, discover patterns and perform number magic: this colourful, 31-page PDF booklet explains the BRATS11 and bday method techniques step by step, with clear, precise explanations, a relaxed tone and a touch of Halloween.

You will learn to simplify calculations with RFD, multiply by 11 using the Killer Move, build and apply B11 codes, and find the day of the week for a date. Seven puzzles and number tricks complement the explanations.

The booklet explains the methods; the free websites provide the practice. Direct links take you to the corresponding practice pages.

You will receive the English edition as a 31-page PDF. Future updates to this booklet are included at no additional charge.

The online tools are free and can be used independently of your purchase. This is a digital product; no printed book will be shipped.