ICAS Mathematics 3 — Questions and Answers
Question 1: What is 15% of 240?
- 36 (Correct answer)
- 30
- 40
- 45
Correct answer: 36
15% of 240 = 0.15 × 240 = 36.
Question 2: Which expression is equivalent to 4(x + 3)?
- 4x + 3
- 4x + 12 (Correct answer)
- x + 12
- 4x + 7
Correct answer: 4x + 12
Using the distributive property: 4 × x + 4 × 3 = 4x + 12.
Question 3: A square garden has a side length of 9 m. What is its area?
- 36 m²
- 72 m²
- 81 m² (Correct answer)
- 18 m²
Correct answer: 81 m²
Area of a square = side² = 9² = 81 m².
Question 4: Which number is a common multiple of both 4 and 6?
- 10
- 14
- 24 (Correct answer)
- 18
Correct answer: 24
24 is divisible by both 4 (24÷4=6) and 6 (24÷6=4), making it a common multiple.
Question 5: On a number line, which point is between −3 and −1?
- −4
- 0
- −2 (Correct answer)
- 1
Correct answer: −2
−2 lies between −3 and −1 on the number line.
Question 6: A recipe needs 2/3 cup of sugar. If you triple the recipe, how much sugar is needed?
- 1 cup
- 2 cups (Correct answer)
- 1 1/3 cups
- 3 cups
Correct answer: 2 cups
2/3 × 3 = 6/3 = 2 cups.
Question 7: What is the median of the data set: 5, 9, 3, 7, 11?
- 7 (Correct answer)
- 9
- 5
- 6
Correct answer: 7
Arranged in order: 3, 5, 7, 9, 11 — the middle value is 7.
