Library / Education / 1001 tasks for mental calculation / Braille
1001 tasks for mental calculation ⠃⠗⠋ braille edition
Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.
Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt
54,919 braille cells · 55 embossed pages at 40×25 · 102,116 unrepresentable characters omitted
⠼⠛⠑⠀⠀⠀⠼⠑⠚⠚⠚⠀⠲⠀⠀⠀⠀⠀⠀⠀⠀⠂⠀⠀⠂⠀⠀⠀⠀⠀⠲⠀⠀⠀⠀⠀⠀⠂⠀⠀ ⠦⠀⠼⠓⠚⠆⠀⠼⠙⠚⠀⠲⠀⠀⠀⠀⠼⠉⠋⠛⠲⠀⠀⠀⠀⠀⠼⠊⠀⠲⠀⠼⠋⠚⠀⠲⠀⠀⠀ ⠼⠙⠀⠲⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠶⠀⠶⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠼⠋⠀⠦⠀⠀⠼⠁⠚⠀⠲⠀ ⠼⠓⠀⠲⠀⠀⠀⠀⠼⠉⠋⠓⠲⠀⠀⠀⠀⠀⠀⠀⠲⠀⠀⠀⠀⠀⠀⠀⠼⠁⠑⠀⠂⠀⠀⠀⠼⠃⠑⠀ ⠲⠀⠀⠀⠼⠃⠀⠲⠀⠀⠲⠀⠀⠀⠀⠀⠀⠀⠦⠀⠀⠼⠛⠑⠀⠲⠀⠀⠀⠀⠼⠉⠋⠊⠲⠀⠀⠀⠀ ⠼⠓⠉⠀⠀⠀⠼⠙⠀⠲⠀⠀⠀⠀⠦⠀⠀⠼⠁⠚⠚⠚⠀⠀⠀⠀⠼⠉⠛⠚⠲⠀⠼⠁⠚⠀⠀⠀⠼⠑ ⠀⠀⠀⠼⠉⠑⠀⠲⠂⠀⠀⠼⠁⠚⠀⠀⠀⠼⠑⠀⠀⠀⠀⠼⠙⠚⠀⠲⠀⠀⠀⠂⠀⠀⠀⠦⠀⠼⠉⠀ ⠲⠆⠀⠼⠃⠀⠲⠀⠀⠀⠀⠼⠉⠛⠁⠲⠀⠀⠀⠀⠀⠶⠀⠀⠶⠀⠀⠀⠀⠀⠀⠀⠲⠀⠀⠀⠀⠀⠀ ⠼⠙⠀⠀⠀⠲⠀⠀⠀⠦⠀⠀⠼⠁⠚⠀⠀⠀⠀⠼⠉⠛⠃⠲⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠲⠀⠀⠀⠀⠀⠲⠀⠀⠀⠀⠀⠀⠀⠀⠀⠂⠀⠀⠀⠼⠛⠀⠀⠦⠀⠼⠃⠀⠀⠀⠼⠙⠀⠀⠀⠀⠀ ⠼⠉⠛⠉⠲⠀⠀⠀⠼⠛⠀⠀⠲⠀⠀⠀⠀⠀⠀⠼⠙⠀⠂⠀⠀⠀⠀⠀⠼⠃⠓⠀⠲⠀⠀⠀⠀⠀⠀ ⠼⠉⠀⠂⠀⠀⠀⠀⠼⠃⠓⠀⠲⠀⠀⠀⠀⠂⠀⠀⠀⠦⠀⠼⠙⠚⠆⠀⠼⠉⠆⠀⠼⠙⠀⠀⠀⠀ ⠼⠉⠛⠙⠲⠀⠀⠀⠀⠀⠀⠀⠀⠲⠀⠀⠀⠼⠋⠑⠀⠀⠲⠀⠀⠀⠀⠀⠀⠦⠀⠼⠋⠛⠋⠚⠀⠀⠀⠀ ⠼⠉⠛⠑⠲⠀⠀⠀⠀⠀⠀⠀⠼⠃⠑⠀⠲⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠲⠀⠀⠀⠀⠀⠀⠼⠋⠚⠀⠲ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠦⠀⠀⠀⠼⠑⠀⠀⠀⠀⠀⠼⠉⠛⠋⠲⠀⠀⠀⠀⠀⠀⠼⠉⠀⠲⠀⠀⠀ ⠼⠙⠁⠀⠂⠀⠀⠀⠀⠼⠃⠓⠂⠀⠀⠀⠼⠃⠛⠲⠀⠀⠀⠀⠀⠲⠀⠀⠀⠀⠀⠀⠀⠦⠀⠼⠃⠚⠑⠆ ⠀⠼⠁⠙⠚⠆⠀⠼⠁⠉⠑⠀⠀⠀⠀⠼⠉⠛⠛⠲⠀⠀⠀⠀⠀⠀⠼⠛⠀⠲⠀⠀⠀⠀⠀⠀⠦⠀ ⠼⠃⠙⠀⠀⠀⠀⠼⠉⠛⠓⠲⠀⠀⠀⠼⠃⠙⠀⠀⠀⠀⠲⠀⠀⠀⠦⠀⠼⠋⠚⠀⠀⠀⠀⠀ ⠼⠉⠛⠊⠲⠀⠀⠀⠼⠁⠚⠚⠀⠲⠀⠀⠼⠃⠀⠀⠀⠀⠀⠀⠀⠼⠁⠃⠚⠀⠲⠀⠀⠀⠀⠀⠀⠀⠦⠀ ⠼⠃⠑⠀⠲⠀⠀⠀⠀⠼⠉⠓⠚⠲⠀⠀⠀⠀⠀⠀⠀⠀⠼⠁⠃⠀⠀⠂⠀⠀⠼⠁⠑⠀⠀⠀⠲⠀⠀⠀ ⠼⠑⠀⠲⠀⠀⠀⠲⠀⠀⠀⠀⠀⠦⠀⠼⠉⠀⠲⠀⠀⠀⠀⠼⠉⠓⠁⠲⠀⠀⠀⠀⠼⠁⠚⠀⠲⠀⠀⠀ ⠲⠀⠀⠀⠀⠀⠦⠀⠼⠋⠚⠀⠀⠀⠀⠼⠉⠓⠃⠲⠀⠀⠀⠀⠼⠋⠛⠑⠀⠂⠀⠀⠀⠀⠀⠀⠼⠃⠑⠀ ⠲⠀⠀⠀⠀⠀⠀⠂⠀⠀⠀⠀⠂⠀⠀⠀⠀⠀⠲⠀⠀⠀⠀⠦⠀⠼⠁⠑⠚⠆⠀⠼⠃⠃⠑⠆⠀ ⠼⠉⠚⠚⠀⠀⠀⠀⠼⠉⠓⠉⠲⠀⠀⠀⠀⠀⠼⠁⠀⠲⠀⠼⠋⠚⠀⠲⠂⠀⠀⠀⠀⠀⠼⠉⠀⠲⠀⠀ ⠦⠀⠼⠙⠀⠲⠀⠀⠀⠀⠼⠉⠓⠙⠲⠀⠀⠀⠀⠀⠀⠀⠼⠁⠃⠚⠚⠀⠲⠀⠀⠀⠀⠲⠀⠀⠀⠀⠀⠀
These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.