OAA Mathematics 2 — Questions and Answers
Question 1: A rectangular garden is 12 feet long and 8 feet wide. What is the area of the garden?
- 20 square feet
- 40 square feet
- 96 square feet (Correct answer)
- 80 square feet
Correct answer: 96 square feet
Area = length × width = 12 × 8 = 96 square feet.
Question 2: Which of the following is equivalent to 3/4?
- 0.25
- 0.34
- 0.75 (Correct answer)
- 0.43
Correct answer: 0.75
3 ÷ 4 = 0.75, so 3/4 = 0.75.
Question 3: A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of randomly selecting a blue marble?
- 1/5
- 3/10 (Correct answer)
- 3/7
- 1/3
Correct answer: 3/10
There are 3 blue marbles out of 10 total marbles, so P(blue) = 3/10.
Question 4: What is the value of 5² + 3²?
- 64
- 34 (Correct answer)
- 16
- 58
Correct answer: 34
5² = 25 and 3² = 9, so 25 + 9 = 34.
Question 5: A store sells notebooks for $2.50 each. If Marcus buys 6 notebooks, how much does he spend?
- $12.00
- $13.50
- $15.00 (Correct answer)
- $14.50
Correct answer: $15.00
6 × $2.50 = $15.00.
Question 6: Which number is a prime number?
- 15
- 21
- 37 (Correct answer)
- 49
Correct answer: 37
37 has no factors other than 1 and itself, making it prime.
Question 7: On a number line, which point is closest to zero?
- -5
- 3
- -2 (Correct answer)
- 4
Correct answer: -2
|-2| = 2, which is the smallest absolute value among the options.
OAA Mathematics 2
A rectangular garden is 12 feet long and 8 feet wide.
What is the area of the garden?