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The Psychology of Arithmetic ⠃⠗⠋ 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.

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536,202 braille cells · 555 embossed pages at 40×25 · 8,503 unrepresentable characters omitted

⠼⠋⠋⠤⠃⠸⠌⠉⠰⠉⠂⠀⠼⠑⠋⠤⠁⠸⠌⠙⠰⠉⠂⠀⠼⠋⠚⠰⠉⠂⠀⠁⠝⠙⠀
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⠼⠁⠤⠊⠸⠌⠉⠃⠂⠀⠼⠁⠤⠉⠸⠌⠓⠂⠀⠼⠁⠤⠁⠁⠸⠌⠉⠃⠂⠀⠁⠝⠙⠀
⠼⠁⠤⠛⠸⠌⠁⠋⠲⠀⠀⠀⠀⠀⠙⠲⠀⠠⠁⠙⠙⠀⠼⠁⠤⠁⠸⠌⠉⠀⠽⠙⠲⠂⠀
⠼⠁⠤⠁⠸⠌⠙⠀⠽⠙⠲⠂⠀⠼⠁⠤⠁⠸⠌⠃⠀⠽⠙⠲⠂⠀⠼⠃⠀⠽⠙⠲⠂⠀⠼⠉⠸⠌⠙⠀
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⠼⠑⠲⠀⠀⠀⠀⠀⠁⠲⠀⠠⠁⠙⠙⠀⠼⠙⠀⠋⠞⠲⠀⠼⠋⠤⠁⠸⠌⠃⠀⠊⠝⠲⠂⠀
⠼⠑⠉⠤⠁⠸⠌⠙⠀⠊⠝⠲⠂⠀⠼⠑⠀⠋⠞⠲⠀⠼⠁⠸⠌⠃⠀⠊⠝⠲⠂⠀⠼⠑⠋⠤⠉⠸⠌⠙
⠀⠊⠝⠲⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠁⠝⠙⠀⠼⠑⠀⠋⠞⠲⠀⠀⠀⠀⠀⠃⠲⠀⠠⠁⠙⠙⠀
⠼⠛⠀⠇⠃⠲⠂⠀⠼⠋⠀⠇⠃⠲⠀⠼⠁⠁⠀⠕⠵⠲⠂⠀⠼⠛⠤⠁⠸⠌⠃⠀⠇⠃⠲⠂⠀⠼⠋⠀
⠇⠃⠲⠀⠼⠙⠤⠁⠸⠌⠃⠀⠕⠵⠲⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠁⠝⠙⠀⠼⠓⠤⠁⠸⠌⠃⠀
⠇⠃⠲⠀⠀⠀⠀⠀⠉⠲⠀⠠⠁⠙⠙⠀⠼⠁⠀⠓⠗⠲⠀⠼⠋⠀⠍⠊⠝⠲⠀⠼⠃⠚⠀⠎⠑⠉⠲⠂
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⠁⠝⠙⠀⠼⠑⠑⠀⠍⠊⠝⠲⠀⠀⠀⠀⠀⠙⠲⠀⠠⠁⠙⠙⠀⠼⠛⠀⠙⠕⠇⠇⠁⠗⠎⠂⠀⠼⠁⠉
⠀⠓⠁⠇⠋⠀⠙⠕⠇⠇⠁⠗⠎⠂⠀⠼⠃⠁⠀⠟⠥⠁⠗⠞⠑⠗⠎⠂⠀⠼⠁⠛⠀⠙⠊⠍⠑⠎⠂⠀
⠁⠝⠙⠀⠼⠁⠊⠀⠝⠊⠉⠅⠑⠇⠎⠲⠀⠀⠀⠀⠠⠎⠞⠑⠏⠀⠼⠙⠲⠀⠀⠀⠀⠀⠁⠲⠀
⠠⠁⠙⠙⠀⠲⠼⠚⠑⠤⠁⠸⠌⠃⠂⠀⠲⠼⠚⠋⠂⠀⠲⠼⠚⠙⠤⠉⠸⠌⠙⠂⠀
⠲⠼⠚⠃⠤⠉⠸⠌⠙⠂⠀⠁⠝⠙⠀⠲⠼⠚⠑⠤⠁⠸⠌⠙⠲⠀⠀⠀⠀⠀⠃⠲⠀⠠⠁⠙⠙⠀
⠲⠼⠉⠉⠤⠁⠸⠌⠉⠂⠀⠲⠼⠁⠃⠤⠁⠸⠌⠃⠂⠀⠲⠼⠁⠓⠂⠀⠲⠼⠁⠋⠤⠃⠸⠌⠉⠂⠀
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⠲⠼⠚⠓⠤⠁⠸⠌⠉⠂⠀⠲⠼⠚⠋⠤⠁⠸⠌⠙⠂⠀⠲⠼⠃⠁⠂⠀⠲⠼⠚⠉⠤⠉⠸⠌⠙⠂⠀
⠁⠝⠙⠀⠲⠼⠁⠋⠤⠃⠸⠌⠉⠲⠀⠀⠀⠀⠀⠙⠲⠀⠠⠁⠙⠙⠀⠲⠼⠋⠃⠂⠀
⠲⠼⠋⠙⠤⠁⠸⠌⠃⠂⠀⠲⠼⠋⠋⠤⠃⠸⠌⠉⠂⠀⠲⠼⠁⠚⠤⠁⠸⠌⠙⠂⠀⠁⠝⠙⠀
⠲⠼⠋⠓⠲⠀⠀⠀⠀⠠⠎⠞⠑⠏⠀⠼⠉⠲⠀⠀⠀⠀⠀⠁⠲⠀⠠⠁⠙⠙⠀⠼⠛⠤⠁⠸⠌⠙⠂⠀
⠼⠋⠤⠁⠸⠌⠃⠂⠀⠼⠓⠤⠉⠸⠌⠓⠂⠀⠼⠑⠤⠉⠸⠌⠙⠂⠀⠼⠊⠤⠑⠸⠌⠓⠀⠁⠝⠙⠀

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.