Over the past week, thousands of middle school students participated in this year’s AMC 8 Competition. Whether you took the AMC 8 at school or online, we hope it went well!
The last day of testing was January 24th, so now the problems can be discussed! See below for an answer key for the 2022 questions as well as the concepts tested on each problem.
geometry: areas and grids
arithmetic: operations and functions
number theory: factors and counting
geometry: symmetry and reflections
arithmetic: word problems and careful thinking
algebra: averages, ratios, and arithmetic sequences
algebra: unit conversions and rates
arithmetic: fractions and patterns
arithmetic: differences, averages, and patterns
algebra: motion, graphs, and slopes
algebra: sequences and patterns
counting and probability: probability with digits and perfect squares
algebra: careful thinking, equations, and patterns
counting and probability: arranging letters and putting letters into spaces
algebra: ratios and slopes
algebra: averages and sums
number theory: units digits and careful thinking
geometry: coordinates, rectangles, areas, and midpoints
arithmetic: medians and statistics
arithmetic: sums, equations, and logical thinking
algebra: fractions, percentages, and ratios
algebra: motions, rates, and tables
counting and probability: cases and symmetry
geometry: volumes, prisms, and nets
counting and probability: cases and careful thinking
Want full solutions? Dr. Wang reviews all 25 questions in his review video available for purchase by clicking here.
This year’s AMC 8 problems are available on the ZIML site by clicking here (either as a Mock Exam or PDF). While you’re there, check out the Daily Magic Spells and Monthly Contests for extra practice!
The AMC 8 exam is administered by the Mathematical Association of America (MAA). For general information about the AMC 8, click here.
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