Stanford Achievement Test Stanford Achievement Mathematics Procedures 4 — Questions and Answers
Question 1: What is the greatest common factor (GCF) of 48 and 72?
- 8
- 12
- 24 (Correct answer)
- 36
Correct answer: 24
The factors of 48 and 72 share 24 as the largest common factor.
Question 2: Evaluate: (3 + 5) × 4 – 6 ÷ 2
- 26
- 29 (Correct answer)
- 35
- 42
Correct answer: 29
Parentheses first: 8 × 4 – 6 ÷ 2 = 32 – 3 = 29.
Question 3: A train travels 360 miles in 6 hours. What is its average speed in miles per hour?
- 54 mph
- 60 mph (Correct answer)
- 66 mph
- 72 mph
Correct answer: 60 mph
Speed = distance ÷ time = 360 ÷ 6 = 60 mph.
Question 4: What is 5/8 – 1/4?
- 1/8
- 3/8 (Correct answer)
- 4/4
- 1/2
Correct answer: 3/8
Convert 1/4 to 2/8, then 5/8 – 2/8 = 3/8.
Question 5: Which decimal is equivalent to 7/20?
- 0.35 (Correct answer)
- 0.37
- 0.70
- 3.5
Correct answer: 0.35
7/20 = 35/100 = 0.35.
Question 6: A recipe calls for 2¼ cups of flour. If you triple the recipe, how many cups do you need?
- 5¼
- 6¾ (Correct answer)
- 7
- 7½
Correct answer: 6¾
2¼ × 3 = 9/4 × 3 = 27/4 = 6¾ cups.
Question 7: What is the perimeter of a square with a side length of 9 inches?
- 18 in
- 27 in
- 36 in (Correct answer)
- 81 in
Correct answer: 36 in
Perimeter of a square = 4 × side = 4 × 9 = 36 inches.
Stanford Achievement Test Stanford Achievement Mathematics Procedures 4
What is the greatest common factor (GCF) of 48 and 72?