Use of the Site — Cryptarithm
Cryptarithm provides browser-based arithmetic puzzles for practice and recreation. No account or payment is currently required to play.
Practice and classroom materials
The game provides a clean image-download feature for placing questions in classroom worksheets and lesson slides. Shared links recreate a question; they do not include a player’s answers or saved progress.
Accuracy and availability
New puzzles are checked for a unique solution before they are offered, but software errors are possible. Review questions before using them in an assessment.
Local browser storage can be cleared or become unavailable. The site does not currently provide an account-based backup or a guarantee of continuous availability.
Images and sound
Third-party illustrations and audio remain subject to their respective rights and licences. Their presence on this site is not an offer of a separate licence to reuse them.
The party-popper illustration is credited to Flat Icons on Flaticon. The celebration sound is the supplied Birthday Party Horn recording by Universfield. The site does not claim endorsement by these creators.