Skip to contentSkip to Braille Studio

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.