Over the past week, thousands of middle school students have 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 November 16th, so now the problems can be discussed! See below for an answer key for the 2020 questions as well as the concepts tested on each problem.
geometry: areas and units
counting and probability: patterns and geometry
arithmetic: fractions and percents
counting and probability: digits and possible numbers
arithmetic: value of coins and logic
geometry: cubes, surfaces, and spatial reasoning
counting and probability: complementary counting
algebra: motion, averages speed, and graphs
algebra: factorials and rewriting expressions
arithmetic: ratios and probability
arithmetic: graphs, averages, and estimation
algebra: sums and equations
number theory: factors and number of factors
geometry: circles, rectangles, and Pythagorean theorem
number theory: divisible and possible digits
arithmetic and logic: averages and remainders
counting and probability: counting paths and patterns
number theory: sequences and recursion
counting and probability: cases and logic
geometry and algebra: areas, percentages, and ratios
geometry and algebra: lengths and equations
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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