Pairing and grouping — AMC & AIME Problems
Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses pairing and grouping — a problem-solving techniques concept — each with a professionally curated solution, many with a video solution too, from LIVE by Po-Shen Loh. Browse all concepts or the full past-contest archive.
All of these problems are used with official legal permission of the Mathematical Association of America (MAA).
AMC 8
1985 AMC 8 Problem 2 · 1989 AMC 8 Problem 1 · 1990 AMC 8 Problem 16 · 1992 AMC 8 Problem 1 · 1993 AMC 8 Problem 19 · 1996 AMC 8 Problem 16 · 1997 AMC 8 Problem 25 · 2013 AMC 8 Problem 3 · 2016 AMC 8 Problem 8 · 2018 AMC 8 Problem 5 · 2025 AMC 8 Problem 15 · 2025 AMC 8 Problem 16 · 2026 AMC 8 Problem 1
AMC 10
2003 AMC 10A Problem 1 · 2003 AMC 10B Problem 4 · 2005 AMC 10B Problem 25 · 2006 AMC 10B Problem 1 · 2009 AMC 10B Problem 21 · 2013 AMC 10B Problem 22 · 2014 AMC 10B Problem 6 · 2018 AMC 10A Problem 18 · 2020 AMC 10A Problem 8 · 2020 AMC 10A Problem 21 · 2021 AMC 10B Fall Problem 1 · 2022 AMC 10A Problem 14 · 2022 AMC 10B Problem 14 · 2023 AMC 10B Problem 15 · 2024 AMC 10B Problem 8 · 2025 AMC 10A Problem 21