1. No category

2015
Chapter Competition
Answer Key
The appropriate units (or their abbreviations) are provided
in the answer blanks.
Note to coordinators: Answers to the Tiebreaker Round
problems appear in the Tiebreaker Round Booklet.
National Sponsors
Raytheon Company
Northrop Grumman Foundation
U.S. Department of Defense
National Society of Professional Engineers
Phillips 66
Texas Instruments Incorporated
3Mgives
CNA Foundation
Art of Problem Solving
NextThought
Founding Sponsors: National Society of Professional Engineers, National Council of Teachers of Mathematics and CNA Foundation
Copyright MATHCOUNTS, Inc. 2014. All rights reserved.
02-C15ANS
Sprint Round
6
1. _____________
$ 600 or
7. _____________
600.00
triangles
8
2. _____________
11
13._____________
8
14._____________
225
8. _____________
1
2
9. _____________
5
12
15._____________
0
3. _____________
6
4. _____________
papers
8
16._____________
250
10._____________
$ 1600 or
11._____________
1600.00
$ 36 or 36.00
5. _____________
−1
17._____________
6. _____________
3
units
8
12._____________
1
18._____________
2
Copyright MATHCOUNTS, Inc. 2014. All rights reserved. 2015 Chapter Answer Key
Sprint Round
144
19._____________
−8
25._____________
2
3
20._____________
−5
26._____________
16
5
21._____________
63
22._____________
35
128
27._____________
131 ordered
28._____________
pairs
4
23._____________
6
29._____________
units2
1.5
24._____________
56
30._____________
Copyright MATHCOUNTS, Inc. 2014. All rights reserved. 2015 Chapter Answer Key
Target Round
24 rectangles
1. ________________
342 calories
2. ________________
29
3. _____________
cm
2
4. _____________
11,100
5. _____________
60
m2
7. _____________
49
6. _____________
3
4
8. _____________
Copyright MATHCOUNTS, Inc. 2014. All rights reserved. 2015 Chapter Answer Key
Team Round
27
times
1. _____________
36
6. _____________
96 degrees
7. _____________
17
cm
2. _____________
502 integers
8. _____________
508
3. _____________
8
paths
9. _____________
130 degrees
4. _____________
cm
16
10._____________
1
4
5. _____________
Copyright MATHCOUNTS, Inc. 2014. All rights reserved. 2015 Chapter Answer Key
Countdown Round
28
1. _________________
120
21._________________
15 (sides)
2. _________________
($) 2.25
3. _________________
6 (people)
22._________________
5
23._________________
2
0
4. _________________
0 (values)
24._________________
11
5. _________________
2
25._________________
0 (integers)
6. _________________
25
7. _________________
42
7
26._________________
57
8. _________________
180 (pounds)
9. _________________
60
28._________________
7
29._________________
120
7500
10._________________
50
30._________________
720 (codes)
11._________________
5
31._________________
4
32._________________
9
58 (percent)
12._________________
150 (pounds)
13._________________
47 (marks)
27._________________
44
15._________________
2
33._________________
3
34._________________
5
7
35._________________
8
15 (points)
16._________________
0 (integers)
36._________________
9
17._________________
1
37._________________
2
18._________________
24
38._________________
15
19._________________
2550 (dollars)
39._________________
5
20._________________
13 (integers)
40._________________
5 (ft/s)
14._________________
Copyright MATHCOUNTS, Inc. 2014. All rights reserved. 2015 Chapter Answer Key
Countdown Round
350 (dollars)
41._________________
6 (dollars)
61._________________
27
42._________________
2
43._________________
9
1
44._________________
4
9 (trips)
62._________________
1
6
63._________________
27
45._________________
−31
65._________________
26
46._________________
25 (cm2)
66._________________
2047
47._________________
3
48._________________
2
42 (m2)
67._________________
5
49._________________
7
50._________________
10
5
69._________________
1100
51._________________
16
71._________________
4
52._________________
14 (dollars)
72._________________
336 (cm2)
53._________________
4.5 (miles)
73._________________
272 (students)
54._________________
55 (dominoes)
74._________________
16
55._________________
4096
75._________________
−2
56._________________
6 (digits)
76._________________
42 (minutes)
57._________________
896 (cans)
77._________________
0
58._________________
−11
78._________________
30 (degrees)
59._________________
7 (dollars)
79._________________
13 (miles)
60._________________
384 (calories)
80._________________
54
64._________________
90
68._________________
66
70._________________
Copyright MATHCOUNTS, Inc. 2014. All rights reserved. 2015 Chapter Answer Key