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The Psychology of Arithmetic ⠃⠗⠋ braille edition

Grade 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.

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464,017 braille cells · 476 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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⠋⠊⠗⠌⠀⠓⠳⠗⠲⠀⠠⠩⠑⠀⠎⠁⠺⠀⠲⠲⠲⠲⠀⠮⠀⠎⠑⠉⠕⠝⠙⠀⠓⠳⠗⠲⠀⠀⠀⠀
⠼⠙⠲⠀⠠⠕⠝⠀⠁⠀⠏⠇⠁⠽⠛⠗⠳⠝⠙⠀⠮⠗⠑⠀⠶⠀⠋⠊⠧⠑⠀⠑⠟⠥⠁⠇⠀
⠛⠗⠳⠏⠎⠀⠷⠀⠡⠊⠇⠙⠗⠢⠀⠑⠁⠡⠀⠀⠀⠏⠇⠁⠽⠬⠀⠁⠀⠙⠊⠋⠋⠻⠢⠞⠀
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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.