AMC units digit problems
14 past AMC problems use units digit. 9 come from the AMC 10 and 5 from the AMC 12.
Picks a problem you have not seen, at about the difficulty you are handling.
Problems
Newest contests first. Every problem opens with its answer choices, hints and a worked solution.
- 2025 AMC 10B · Problem 2
- 2025 AMC 12B · Problem 2
- 2024 AMC 10B · Problem 8
- 2023 AMC 10B · Problem 8
- 2023 AMC 12A · Problem 20
- 2018 AMC 10A · Problem 19
- 2015 AMC 10B · Problem 10
- 2008 AMC 10A · Problem 24
- 2008 AMC 12A · Problem 15
- 2005 AMC 10A · Problem 16
- 2003 AMC 10A · Problem 16
- 2002 AMC 12A · Problem 21
- 2000 AMC 10 · Problem 6
- 2000 AMC 12 · Problem 4
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