2010 AMC8 Report for all schools in Colorado
Number of schools returning results 27
Average of school highest score 17.56
Average school team score 46.30
# of State Student Participants 1402
Overall State Average Score 9.34
Average Score by Grade level
Grade # of Students Average
5th 68 7.01
6th 216 8.59
7th 405 9.63
8th 684 9.63
Number of Female Students 636
Average Score of Female Students 8.97
Average Female Scores by Grade
Grade # of Students Average
5th 30 6.73
6th 84 8.24
7th 174 9.12
8th 336 9.22
Number of Male Participants 720
Average Score of Male Participants 9.79
Average score for Males by Grade
Grade # of Students Average
5th 36 7.19
6th 119 9.15
7th 219 10.18
8th 337 10.07
2010 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 2 2
24 2 1 3
23 1 3 4
22 1 1 2
21 2 2
20 4 3 7
19 4 2 6
18 8 4 12
17 8 7 16
16 20 4 24
15 26 6 33
14 25 18 44
13 43 32 75
12 75 47 122
11 62 44 108
10 73 74 153
9 83 81 167
8 88 96 192
7 44 66 115
6 55 63 126
5 53 47 105
4 24 19 45
3 15 9 28
2 7 7
1 1 1 2
0 (@)
0 ($) 1 1 2
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2010 American Mathematics Contest 8
Number of Students by Grade
Achieving indicated Score
SCORE 5th Grade 6th Grade 7th Grade 8th Grade
25 2
24 1 1 1
23 1 3
22 2
21 1 1
20 1 1 5
19 1 3 1
18 2 5 5
17 2 5 9
16 2 10 12
15 1 2 9 20
14 1 4 14 24
13 11 23 41
12 5 16 51 48
11 5 16 24 59
10 1 20 40 86
9 4 25 51 85
8 10 26 48 101
7 7 18 32 56
6 14 22 24 65
5 7 26 33 37
4 5 11 16 13
3 4 8 9 7
2 3 2 1 1
1 1 1
0(@) 2
0($)
(@) These students attempted some of the problems
($) These students attempted none of the problems
Note: Some students failed to indicate a grade
2010 American Mathematics Contest 8
Number of Schools with 3+ students
Achieving team Scores
SCORE school count
71 1
65 2
64 2
63 1
57 3
55 1
53 1
50 2
49 1
47 2
45 1
43 1
40 1
38 1
36 1
33 1
27 1
25 1
Table of Item Difficulty for the 2010
American Mathematics Contest 8
Tabulation of responses by 1402 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.21 2.43 95.01* 0.86 0.36 0.14 0.00
2 5.71 2.14 1.93 63.77* 25.75 0.71 0.00
3 9.49 24.68 59.13* 5.14 0.57 1.00 0.00
4 5.78 11.13 62.34* 14.19 6.35 0.21 0.00
5 6.49 68.05* 8.42 6.85 9.06 0.93 0.21
6 5.63 5.56 3.28 7.92 76.75* 0.43 0.43
7 34.31 32.52* 11.63 7.20 13.34 0.93 0.07
8 26.11 24.39 20.19 19.69* 6.92 2.64 0.07
9 13.12 10.06 31.46 37.02* 7.06 1.21 0.07
10 17.69 25.39* 21.18 18.47 15.26 1.85 0.14
11 19.90 59.49* 7.42 7.49 3.28 2.35 0.07
12 46.58 13.55 11.06 19.19* 7.13* 2.35 0.14
13 9.06 13.48 30.10 21.47 21.47* 4.28 0.14
14 12.41 13.41 32.10* 21.61 16.55 3.92 0.00
15 28.53 18.47 35.24* 9.06 4.92 3.71 0.07
16 38.09 16.33* 12.13 16.41 12.70 4.28 0.07
17 11.77 34.45 21.54 16.62* 8.99 6.35 0.29
18 10.13 18.97 33.31* 16.55 14.98 5.92 0.14
19 24.75 21.97 29.81* 10.91 4.92 7.56 0.07
20 29.10* 15.69 25.89 14.98 7.06 6.92 0.36
21 7.42 17.76 33.67* 16.83 14.34 9.77 0.21
22 10.84 22.33 20.97 19.19 16.41* 10.06 0.21
23 12.70 19.90* 25.53 18.69 11.84 11.06 0.29
24 14.27* 25.82 16.69 22.25 9.70 11.13 0.14
25 15.19 29.32 14.12 10.98 17.76* 12.55 0.07
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem