Talk:Pre-algebra Math Mission/@comment-25304012-20150524134205/@comment-24808864-20150524164344

Many of the exercises have been renamed or modified. If the exercise is truly gone (for now) you can change it's category to "Previous math exercises" and list it in on The World of Math page near the end. That way when a "new" exercise is released we can look there and see if it is just simply a rename.

This is what I have been generally doing in the past and it seems to work pretty well (although I miss some once in awhile). I have been busy with end of the year meetings but I hope to come in soon and help update!