number theory and fractions unit test

Answer 1

1. What is a prime number?
A) A number that is divisible by any other number.
B) A number that is divisible by 1 and itself only.
C) A number that is not divisible by 1 or itself.
D) A number that is divisible by 2 and itself only.

2. Which of the following is an irrational number?
A) 3/4
B) √16
C) 0.75
D) 3.14

3. What is the prime factorization of 36?
A) 2 * 3 * 5
B) 2^2 * 3^2
C) 2 * 2 * 3 * 3
D) 2 * 2 * 3

4. What is the least common multiple (LCM) of 12 and 20?
A) 40
B) 60
C) 120
D) 240

5. Which fraction is equivalent to 3/5?
A) 6/9
B) 4/7
C) 9/15
D) 6/10

6. What is the GCF (Greatest Common Factor) of 24 and 36?
A) 2
B) 3
C) 4
D) 6

7. Simplify the fraction 18/24 to its lowest terms.
A) 3/4
B) 6/8
C) 9/12
D) 12/16

8. Simplify the expression (√9 + √16)^2.
A) 25
B) 36
C) 49
D) 64

9. Which of the following is always true?
A) A fraction with a numerator of 0 is always equal to 0.
B) The product of two negative numbers is always negative.
C) The sum of two positive fractions is always greater than 1.
D) A number raised to the power of 0 is always equal to 0.

10. Which of the following is an equivalent fraction to 2/3?
A) 4/5
B) 6/9
C) 10/15
D) 12/18