FSA FSA Number Sense and Operations 2 — Questions and Answers
Question 1: What is the least common multiple (LCM) of 4 and 6?
- 8
- 10
- 12 (Correct answer)
- 24
Correct answer: 12
The LCM of 4 and 6 is 12 because 12 is the smallest number divisible by both 4 and 6.
Question 2: If a bag has 3 red and 5 blue marbles, what fraction of the marbles are red?
- 3/5
- 5/8
- 3/8 (Correct answer)
- 5/3
Correct answer: 3/8
There are 3 red marbles out of 8 total (3+5), so the fraction is 3/8.
Question 3: What is 0.5 expressed as a fraction in simplest form?
- 5/10
- 1/5
- 1/2 (Correct answer)
- 2/5
Correct answer: 1/2
0.5 equals 5/10, which simplifies to 1/2 by dividing numerator and denominator by 5.
Question 4: Which operation should be performed first in the expression 3 + 4 × 2?
- Addition
- Multiplication (Correct answer)
- Division
- Subtraction
Correct answer: Multiplication
According to the order of operations (PEMDAS), multiplication is performed before addition.
Question 5: What is 25% of 80?
- 15
- 20 (Correct answer)
- 25
- 40
Correct answer: 20
25% of 80 is 20 because 25/100 × 80 = 0.25 × 80 = 20.
Question 6: Which of the following numbers is between 3.4 and 3.5?
- 3.39
- 3.45 (Correct answer)
- 3.51
- 3.60
Correct answer: 3.45
3.45 is between 3.4 and 3.5 on the number line.
FSA FSA Number Sense and Operations 2
What is the least common multiple (LCM) of 4 and 6?