7-Day Binary Practice
Convert one number between decimal and binary each day for a week, working it out by hand. Check in with your answer.
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Tech · Facts & stats · iChallenge network
Daily facts and stats about bytes and digital data, plus real challenges to put them to work.
How many hexadecimal digits are needed to write one byte?
Each hexadecimal digit represents 4 bits, so an 8-bit byte takes two digits, from 00 to FF.

One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Convert one number between decimal and binary each day for a week, working it out by hand. Check in with your answer.
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Find the size in bytes of a photo, a song and a text document on your device and compare them. Post a short write-up.
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Free up some storage each day by deleting unneeded files or duplicate photos. Check in with what you cleared.
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Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
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