Over the past week, thousands of middle school students have participated in this year’s AMC 8 Competition (including some students at Areteem Headquarters seen below).
The last day of testing was November 18th, so now the problems can be discussed! See below for an answer key for the 2019 questions as well as the concepts tested on each problem.
arithmetic: fractions and orderings
geometry: areas and Pythagorean theorem
algebra: motion and graphs
counting & probability: probability and geometric lines of symmetry
geometry: volumes and ratios
arithmetic: means and medians
counting & probability: sets and Venn diagrams
geometry: visualizing 3D shapes
number theory: palindromes
number theory: patterns and days of the week
counting & probability: sets
algebra: motion and average speed
counting and probability: parity and probability
counting and probability and logic
algebra: square roots
algebra and geometry: lines and triangle areas
algebra: percent increase and decrease
number theory: LCM and remainders
geometry: triangles and area ratios
counting and probability: stars and bars
Need to see all the solutions? Areteem’s Dr. Kevin Wang has you covered, solving all 25 problems and giving problem solving tips in a review video. Click here for more information and to purchase. As a limited time offer, we’re giving the video out for free through social media. Check them out for instructions!
The AMC 8 exam is administered by the Mathematical Association of America (MAA). For general information about the AMC 8, click here.