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AMC modular arithmetic problems

96 past AMC problems use modular arithmetic. 55 come from the AMC 10 and 41 from the AMC 12.

Picks a problem you have not seen, at about the difficulty you are handling.

60 most recent problems

Newest contests first. Every problem opens with its answer choices, hints and a worked solution.

Use Start modular arithmetic practice above to work through the remaining 36.

Back to all number theory problems.