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Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

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Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.

Computer Glossary, Computer Terms – Technology Definitions and Cheat Sheets from Whatis.com – The Tech Dictionary and IT Encyclopedia

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High school level mathematics and computer programming lessons, activities and resources that are fun and challenging. Materials for students, parents and teachers.

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