Recently, MGMAT published their free Flashcards on Kindle for a $3 charge, so I went ahead and purchased them. I noticed that studying Flashcards on Kindle (especially Kindle Paperwhite) is a much better experience than on a Phone or a Tablet. Also, I like to study some flashcards before going to bed. Anyway, I completed memorizing those flashcards and decided to make more using the ones posted on GMAT Club.
I converted Flashcards by miguelmick to Kindle, and tested them on my Kindle Paperwhite — they work exactly as the MGMAT one's do (Use Landscape mode). I use Calibre to do this, and it takes a while. I will convert GMAT Club Quant Flashcards—that's also on—GMAT Toolkit (iPhone App)—soon, and then later do more conversions for SC Flashcards. Meanwhile, enjoy these flashcards and let me know if you need it in any other formats.
For some reason, I am unable to attach this 10 MB file here, so I uploaded to filedropper:https://www.box.com/s/dgxy6w7my9s0jenwoind
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Kindle Flashcards - Quant (Official Gmat Club, miguemick's Quant topics), and Verbal (Official Gmat Club) - in Kindle (azw3) format