Highline Math Olympiad 1997 Answers

MEASUREMENT
Subtract 1 point for missing of incorrect units.
YEAR 1 YEAR 2
1. area = 128 sq cm or cm2
perimeter = 60 cm
1. 27.52 sq in or in2
2. 60 sq ft or ft2 2. 6 sq in or in2
3. 27.52 sq m or m2 3. 40 yds
4. 36 sq cm or cm2 4. 36
5. 6305 5. 12



NUMBER SENSE
YEAR 1 YEAR 2
1. 5/8, .6(bar over 6), .68, 73/100, 3/4 1. 1/3
2. 6 2. 60
3. Row1: 7, 9; Row2: 1, 2; Row3: -4 3. 260
4. 13 4. 8
5. A=4, B=8 5. 99



PROBABILITY AND STATISTICS
YEAR 1 YEAR 2
1. mean=84.2, mode=81, median=81, range=25 (1 point each) 1. mean=84.2, mode=81, median=81, range=25 (1 point each)
2. 26/52 or 1/2 2. 100
3. 11/17 or 64.7% 3. 4/16 or 1/4
4. 6/36 or 1/6 4. 1/221
5. 100 5. 45



FUNCTIONS AND RELATIONSHIPS
YEAR 1 YEAR 2
1. 17 1. 4
2. 9 2. 24
3. 24 3. $9
4. 6 4. 69
5. -1 5. 21



SPATIAL SENSE
YEAR 1 YEAR 2
1. 48 1. 60 degrees
2. 52 degrees 2. 30
3. 82 degrees 3. 31 m
4. 30 4. 64 sq cm
5. 24 5. 24