MATHCOUNTS
®
2006
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.
Founding Sponsors
National Sponsors
National Society of
Professional Engineers
ADC Foundation
Raytheon Company
National Council of
Teachers of Mathematics
General Motors Foundation
Shell Oil Company
Lockheed Martin
Texas Instruments Incorporated
National Aeronautics and
Space Administration
3M Foundation
CNA Foundation
Northrop Grumman Foundation
Xerox Corporation
CopyrightInc.
MATHCOUNTS,
Inc.
2005. All rights reserved. 2006 Chapter Answer Key
Copyright MATHCOUNTS,
2005. All rights
reserved.
Sprint Round
15
ounces
1. _________________
5
2. _________________
sq cm
25
7. _________________
129
12. _________________
9 or 9:00 a.m.
8. _________________
$ 44 or 44.00
13. _________________
81
cubes
3. _________________
6
7
4. _________________
Sunday
5. _________________
75
percent
9. _________________
weights
5
14. _________________
11
pounds
10. _________________
6
11
11. _________________
15
15. _________________
ways
2
16. _________________
$ 23,000 or
6. _________________
23,000.00
2
quarts
17. _________________
3
Copyright MATHCOUNTS, Inc. 2005. All rights reserved. 2006 Chapter Answer Key
Sprint Round
34
sq units
18. _________________
32 miles per hour
19. _________________
2013
24. _________________
30
25. _________________
714 square units
26. _________________
28
percent
20. _________________
7
21. _________________
1
5
22. _________________
−4
23. _________________
13
4
hours
27. _________________
pages
96
28. _________________
7
29. _________________
36
seconds
30. _________________
Copyright MATHCOUNTS, Inc. 2005. All rights reserved. 2006 Chapter Answer Key
Target Round
ounces
12
________________
1
3. ________________
2
14
5. ________________
8 hard questions
7. ________________
points
3
2. ________________
sq meters
1.3
4. ________________
EQUALS
6. ________________
points
27
8. ________________
1.
Copyright MATHCOUNTS, Inc. 2005. All rights reserved. 2006 Chapter Answer Key
Team Round
$ 1250 or 1250.00
1. _________________
$ 99.11
7. _________________
bounces
6
2. _________________
1 roller coasters
3. _________________
$ 13.15
8. _________________
$ 247,000 or
4. _________________
247,000.00
6
sides
5. _________________
pieces
10
9. _________________
jellybeans
15
10. _________________
$ 2030 or
6. _________________
2030.00
Copyright MATHCOUNTS, Inc. 2005. All rights reserved. 2006 Chapter Answer Key
Countdown Round
0
1. _________________
9 (sq feet)
14. _________________
12
27. _________________
30 (minutes)
2. _________________
9
80
15. _________________
17
28. _________________
6 (points)
3. _________________
12 (sq feet)
16. _________________
12 (hours or
29. _________________
hours per week)
35 (designs)
17. _________________
8 (gumballs)
30. _________________
120 (degrees)
18. _________________
10 (centimeters)
31. _________________
39
19. _________________
25 (percent)
32. _________________
4
3
4. _________________
16
5. _________________
150 (seconds)
6. _________________
5
7. _________________
990
8. _________________
10 (percent)
20. _________________
30 (cents)
33. _________________
100 (steps)
21. _________________
12
9. _________________
42 (feet)
22. _________________
6 (factors)
34. _________________
90 (cents)
35. _________________
171 (sq feet)
10. _________________
11 (teams)
23. _________________
2 (hours)
36. _________________
17
24. _________________
4
37. _________________
70 (students)
11. _________________
22
12. _________________
5 (hours)
13. _________________
90 (cubic feet)
25. _________________
54
38. _________________
549 (diapers)
26. _________________
12
39. _________________
Copyright MATHCOUNTS, Inc. 2005. All rights reserved. 2006 Chapter Answer Key
Countdown Round
40. _________________
8 (combinations)
41. _________________
121
42. _________________
6 (values)
31 (toothpicks)
53. _________________
3.5 (cubic feet)
54. _________________
4 (results)
55. _________________
43. _________________
0
44. _________________
10π (sq cm)
36
56. _________________
25 (degrees)
57. _________________
45. _________________
290 (men and
women)
46. _________________
2
47. _________________
8 (dollars)
48. _________________
11 (pages)
49. _________________
165
50. _________________
10
52. _________________
122 (points)
9 (dollars)
69. _________________
−6
70. _________________
28
71. _________________
5 (p.m.)
72. _________________
255 (games)
73. _________________
6 (years)
58. _________________
−10
59. _________________
4
60. _________________
14 (cents or
61. _________________
cents per quart)
−10
62. _________________
77 (integers)
63. _________________
1
64. _________________
2
51. _________________
4
78 (percent)
68. _________________
1
65. _________________
2
1000
74. _________________
120 (square units)
75. _________________
4
76. _________________
8
77. _________________
8 (mph)
78. _________________
30 (dollars)
79. _________________
10 (marbles)
80. _________________
24
66. _________________
6
67. _________________
Copyright MATHCOUNTS, Inc. 2005. All rights reserved. 2006 Chapter Answer Key