TerraNova Mathematics 2 — Questions and Answers
Question 1: What is the least common multiple (LCM) of 4 and 6?
- 12 (Correct answer)
- 6
- 24
- 8
Correct answer: 12
The smallest number divisible by both 4 and 6 is 12.
Question 2: A train travels 240 miles in 4 hours. What is its average speed?
- 60 mph (Correct answer)
- 80 mph
- 50 mph
- 45 mph
Correct answer: 60 mph
Speed = distance ÷ time = 240 ÷ 4 = 60 mph.
Question 3: Which of the following is a prime number?
- 29 (Correct answer)
- 27
- 33
- 35
Correct answer: 29
29 has no factors other than 1 and itself, making it prime.
Question 4: What is the perimeter of a square with a side length of 7 inches?
- 28 inches (Correct answer)
- 14 inches
- 49 inches
- 21 inches
Correct answer: 28 inches
Perimeter of a square = 4 × side = 4 × 7 = 28 inches.
Question 5: What is the value of 2³?
- 8 (Correct answer)
- 6
- 9
- 4
Correct answer: 8
2³ means 2 × 2 × 2 = 8.
Question 6: A class of 30 students scored an average of 85 on a test. What is the sum of all scores?
- 2,550 (Correct answer)
- 2,500
- 2,400
- 2,600
Correct answer: 2,550
Sum = average × number of students = 85 × 30 = 2,550.
TerraNova Mathematics 2
What is the least common multiple (LCM) of 4 and 6?