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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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⠗⠑⠉⠑⠊⠧⠑⠀⠋⠀⠁⠀⠞⠺⠕⠤⠙⠕⠇⠇⠜⠀⠃⠊⠇⠇⠦⠀⠀⠀⠀⠼⠃⠲⠀⠠⠚⠕⠓⠝
⠀⠎⠕⠇⠙⠀⠼⠙⠀⠠⠎⠁⠞⠥⠗⠙⠁⠽⠀⠠⠑⠧⠢⠬⠀⠠⠏⠕⠌⠎⠀⠁⠞⠀⠼⠑⠀
⠉⠢⠞⠎⠀⠑⠁⠡⠲⠀⠠⠓⠑⠀⠅⠑⠏⠞⠀⠼⠁⠸⠌⠃⠀⠀⠀⠀⠀⠀⠮⠀⠍⠕⠝⠑⠽⠀⠯⠀
⠾⠀⠮⠀⠕⠮⠗⠀⠼⠁⠸⠌⠃⠀⠓⠑⠀⠃⠳⠛⠓⠞⠀⠠⠎⠥⠝⠙⠁⠽⠀⠏⠁⠏⠻⠎⠀⠁⠞⠀
⠼⠃⠀⠉⠢⠞⠎⠀⠀⠀⠀⠀⠀⠑⠁⠡⠲⠀⠠⠓⠪⠀⠸⠍⠀⠙⠊⠙⠀⠓⠑⠀⠃⠥⠽⠦⠀⠀⠀⠀
⠼⠉⠲⠀⠠⠊⠋⠀⠠⠚⠁⠍⠑⠎⠀⠸⠓⠀⠼⠙⠀⠞⠊⠍⠑⠎⠀⠵⠀⠍⠥⠡⠀⠍⠕⠝⠑⠽⠀⠵
⠀⠠⠛⠑⠕⠗⠛⠑⠂⠀⠓⠑⠀⠺⠳⠇⠙⠀⠓⠀⠼⠁⠋⠲⠀⠀⠀⠀⠀⠀⠠⠓⠪⠀⠍⠥⠡⠀
⠍⠕⠝⠑⠽⠀⠓⠁⠎⠀⠠⠛⠑⠕⠗⠛⠑⠦⠀⠀⠀⠀⠼⠙⠲⠀⠠⠓⠪⠀⠸⠍⠀⠏⠢⠉⠊⠇⠎⠀
⠉⠀⠽⠀⠃⠥⠽⠀⠿⠀⠼⠑⠚⠀⠉⠢⠞⠎⠀⠁⠞⠀⠮⠀⠗⠁⠞⠑⠀⠷⠀⠼⠃⠀⠿⠀⠼⠑⠀⠀
⠉⠢⠞⠎⠦⠀⠀⠀⠀⠼⠑⠲⠀⠠⠮⠀⠥⠝⠊⠿⠍⠎⠀⠿⠀⠁⠀⠃⠁⠎⠑⠃⠁⠇⠇⠀⠝⠔⠑⠀
⠉⠕⠌⠀⠼⠃⠲⠑⠚⠀⠑⠁⠡⠲⠀⠠⠮⠀⠩⠕⠑⠎⠀⠉⠕⠌⠀⠀⠀⠀⠀⠀⠼⠃⠀⠁⠀
⠏⠁⠊⠗⠲⠀⠠⠱⠁⠞⠀⠴⠀⠮⠀⠞⠕⠞⠁⠇⠀⠉⠕⠌⠀⠷⠀⠥⠝⠊⠿⠍⠎⠀⠯⠀⠩⠕⠑⠎
⠀⠿⠀⠮⠀⠀⠀⠀⠀⠀⠝⠔⠑⠦⠀⠀⠀⠀⠼⠋⠲⠀⠠⠔⠀⠮⠀⠎⠡⠕⠕⠇⠎⠀⠷⠀⠁⠀
⠉⠻⠞⠁⠔⠀⠉⠊⠞⠽⠀⠮⠗⠑⠀⠁⠗⠑⠀⠼⠃⠃⠚⠚⠀⠏⠥⠏⠊⠇⠎⠆⠀⠼⠁⠸⠌⠃⠀
⠁⠗⠑⠀⠀⠀⠀⠀⠀⠔⠀⠮⠀⠏⠗⠊⠍⠜⠽⠀⠛⠗⠁⠙⠑⠎⠂⠀⠼⠁⠸⠌⠙⠀⠔⠀⠮⠀
⠛⠗⠁⠍⠍⠜⠀⠛⠗⠁⠙⠑⠎⠂⠀⠼⠁⠸⠌⠓⠀⠔⠀⠮⠀⠓⠊⠛⠓⠀⠀⠀⠀⠀⠀
⠎⠡⠕⠕⠇⠂⠀⠯⠀⠮⠀⠗⠑⠌⠀⠔⠀⠮⠀⠝⠊⠛⠓⠞⠀⠎⠡⠕⠕⠇⠲⠀⠠⠓⠪⠀⠸⠍⠀
⠏⠥⠏⠊⠇⠎⠀⠁⠗⠑⠀⠮⠗⠑⠀⠀⠀⠀⠀⠀⠔⠀⠮⠀⠝⠊⠛⠓⠞⠀⠎⠡⠕⠕⠇⠦⠀⠀⠀⠀

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.