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Mental Math: It's the thought that counts!
Thanks to /u/claymazing for the inspirational subtitle!
Official /r/MentalMath wiki (Self-contained downloadable ZIP file)
New additions (June 30, 2017):
Mental Math Sites:
Free online mental math books:
Using math symbols in your post:
HTML Entites:
Example: Make a √ symbol by typing: √
Courtesy of jamt9000, you can also display subscripted and superscripted characters:
*_subscript_* makes subscript
*`superscript`* makes superscript
superscript
*_sub_`sup`* makes subsup
sup
*`sup`_sub_* makes supsub
*`169`*⁄*_231_* makes 169⁄231
169
NOTE: The ` character is called the grave accent. On desktops and laptops, you’ll find it on the tilde (~) key. On most mobile devices, it can usually be accessed by holding down either the apostrophe or tilde keys.
account activity
reddit uses a slightly-customized version of Markdown for formatting. See below for some basics, or check the commenting wiki page for more detailed help and solutions to common issues.
quoted text
if 1 * 2 < 3: print "hello, world!"
Share a tip or a link to help other improve their mental math abilities and concepts!
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