Thread:HMcCoy/@comment-25143095-20140813045845/@comment-24808864-20140813052649

http://khanacademy.wikia.com/wiki/Category:Math_exercises Here is supposedly "all math exercises" but if you look closely challenge patches, some math missions and other junk was accidentally put under that category also. I bet the accurate count for number of exercise pages done is probably around 500 (not the 620 this one counts because of the other things that were put on this category).