# 2019 AMC 8 Answer Key Released Posted by

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.

1
D
arithmetic
2
E
geometry: areas
3
E
arithmetic: fractions and orderings
4
D
geometry: areas and Pythagorean theorem
5
B
algebra: motion and graphs
6
C
counting & probability: probability and geometric lines of symmetry
7
A
arithmetic: averages
8
E
arithmetic: percentages
9
B
geometry: volumes and ratios
10
B
arithmetic: means and medians
11
D
counting & probability: sets and Venn diagrams
12
A
geometry: visualizing 3D shapes
13
A
number theory: palindromes
14
C
number theory: patterns and days of the week
15
B
counting & probability: sets
16
D
algebra: motion and average speed
17
B
arithmetic: patterns
18
C
counting and probability: parity and probability
19
C
counting and probability and logic
20
D
algebra: square roots
21
E
algebra and geometry: lines and triangle areas
22
E
algebra: percent increase and decrease
23
B
number theory: LCM and remainders
24
B
geometry: triangles and area ratios
25
C
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!