Stanford Achievement Test Stanford Achievement Mathematics Procedures 3 — Questions and Answers
Question 1: What is 2,304 × 15?
- 34,560 (Correct answer)
- 34,056
- 23,040
- 34,500
Correct answer: 34,560
2,304 × 15 = 2,304 × 10 + 2,304 × 5 = 23,040 + 11,520 = 34,560.
Question 2: A bag has 36 marbles. If 5/9 of them are blue, how many blue marbles are there?
- 15
- 18
- 20 (Correct answer)
- 25
Correct answer: 20
5/9 × 36 = 5 × 4 = 20 blue marbles.
Question 3: Which of the following is equivalent to 2⁵?
- 10
- 25
- 32 (Correct answer)
- 64
Correct answer: 32
2⁵ = 2 × 2 × 2 × 2 × 2 = 32.
Question 4: Solve for x: 5x – 7 = 28
- x = 4
- x = 5
- x = 6
- x = 7 (Correct answer)
Correct answer: x = 7
5x = 35, so x = 35 ÷ 5 = 7.
Question 5: What is the value of √144?
- 11
- 12 (Correct answer)
- 13
- 14
Correct answer: 12
√144 = 12 because 12 × 12 = 144.
Question 6: A store discounts a $80 jacket by 25%. What is the sale price?
- $55
- $60 (Correct answer)
- $65
- $70
Correct answer: $60
25% of $80 = $20, and $80 – $20 = $60.
Question 7: What is 4.8 × 0.05?
- 0.024
- 0.24 (Correct answer)
- 2.4
- 24
Correct answer: 0.24
4.8 × 0.05 = 4.8 × 5 ÷ 100 = 24 ÷ 100 = 0.24.
