Stanford Achievement Test Stanford Achievement Mathematics Procedures 5 — Questions and Answers
Question 1: Which of the following is the product of 1.2 × 1.2?
- 1.04
- 1.44 (Correct answer)
- 2.4
- 14.4
Correct answer: 1.44
1.2 × 1.2 = 1.44 (12 × 12 = 144, then place 2 decimal places).
Question 2: What is 3,600 ÷ 0.6?
- 60
- 600
- 6,000 (Correct answer)
- 36,000
Correct answer: 6,000
Dividing by 0.6 is the same as multiplying by 10/6, giving 3,600 × 10 ÷ 6 = 6,000.
Question 3: If a triangle has a base of 10 cm and a height of 6 cm, what is its area?
- 16 cm²
- 30 cm² (Correct answer)
- 60 cm²
- 120 cm²
Correct answer: 30 cm²
Area of a triangle = ½ × base × height = ½ × 10 × 6 = 30 cm².
Question 4: What is 40% expressed as a fraction in simplest form?
- 40/100
- 2/5 (Correct answer)
- 4/5
- 1/4
Correct answer: 2/5
40% = 40/100 = 2/5 after dividing by the GCF of 20.
Question 5: Solve: 48 ÷ (4 + 2) × 3
- 6
- 24 (Correct answer)
- 36
- 72
Correct answer: 24
Parentheses first: 48 ÷ 6 × 3 = 8 × 3 = 24.
Question 6: A number is increased by 30% and the result is 91. What was the original number?
- 61
- 63
- 70 (Correct answer)
- 75
Correct answer: 70
Original × 1.30 = 91, so original = 91 ÷ 1.30 = 70.
Question 7: What is the value of 3 × 10³ + 5 × 10² + 7 × 10⁰?
- 3,057
- 3,507 (Correct answer)
- 35,007
- 3,570
Correct answer: 3,507
3,000 + 500 + 7 = 3,507.
Stanford Achievement Test Stanford Achievement Mathematics Procedures 5
Which of the following is the product of 1.2 × 1.2?