ISEE MATH 3 — Questions and Answers
Question 1: A recipe uses 2 cups of flour for every 3 cups of sugar. How many cups of flour are needed for 12 cups of sugar?
- 8 (Correct answer)
- 6
- 18
- 9
Correct answer: 8
The ratio 2:3 scales by 4 (since 12 ÷ 3 = 4), so 2 × 4 = 8 cups of flour.
Question 2: What is 0.6 written as a fraction in simplest form?
- 3/5 (Correct answer)
- 6/100
- 2/3
- 1/6
Correct answer: 3/5
0.6 = 6/10, which simplifies to 3/5.
Question 3: The perimeter of a square is 36 cm. What is its area?
- 81 cm² (Correct answer)
- 36 cm²
- 144 cm²
- 324 cm²
Correct answer: 81 cm²
Each side is 36 ÷ 4 = 9 cm, so the area is 9 × 9 = 81 cm².
Question 4: What is the greatest common factor (GCF) of 24 and 36?
- 12 (Correct answer)
- 6
- 8
- 4
Correct answer: 12
The largest factor shared by both 24 and 36 is 12.
Question 5: If x = -3, what is the value of x² + 2x?
- 3 (Correct answer)
- -3
- 15
- -15
Correct answer: 3
(-3)² + 2(-3) = 9 - 6 = 3.
Question 6: A jacket costs $40 and is discounted 30%. What is the sale price?
- $28 (Correct answer)
- $30
- $12
- $24
Correct answer: $28
30% of 40 is 12, so 40 - 12 = $28.
Question 7: What is the next number in the pattern: 3, 6, 12, 24, ...?
- 48 (Correct answer)
- 36
- 30
- 42
Correct answer: 48
Each term is doubled, so 24 × 2 = 48.
ISEE MATH 3
A recipe uses 2 cups of flour for every 3 cups of sugar.
How many cups of flour are needed for 12 cups of sugar?