Cryptarithms are a puzzle where the digits are replaced by letters or symbols. When the numbers are replaced by letters of the alphabet and it spells something readable, it’s called Alphametics.
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Aww.. thanks so much! I really hope you enjoy them – they really are a favorite of mine. The ones I gave are pretty well known, so here’s a couple of websites that have answers to those and even more of them:
http://cryptarithms.awardspace.us/
http://www.cut-the-knot.org/cryptarithms/st_crypto.shtml
Happy experimenting!
Aurora
Hi Aurora,
The video you posted on cryptarythms was – WOW! I need to dust those cobwebs off my brain. Would you be willing to post the answers? I know my children will find this challenging and fun!