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Fun Math Enrichment for Grades 1-9

Welcome to

The Cambridge Math Circle!

serving Cambridge and the Greater Boston Area

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CMC News

Check out CMC in Math Circle Network's Math Circular Spring 2026!

We were also recently in Harvard Magazine.

We're hiring!

Have experience with fundraising? Then check out our job opportunities.

Play DigitQuest

Play today's DigitQuest puzzle.

A new puzzle every day!

Fall Registration is OPEN

Apply for fall classes by September 16th to avoid a late registration fee.

Registration is done on a first-come, first-served basis.

Fall Registration

About Our Programs

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He just has SO much fun, he loves the interaction with the teachers, he loves the puzzles and the problem-solving skills. He has fun.

-Parent of a 5th grader at The Peabody School

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