I. Read each item very carefully. Write the letter of your answer.
1. These are numbers with more than two factors.
A. composite numbers
C. prime numbers
B. factors
D. multiples
2. Which of the following is a composite number?
A41
C. 47
B. 43
D. 49
3. Which of these numbers is a prime number?
A. 39
C. 41
B. 40
D. 42
4. Write 8 as a product of its prime factors.
A 2x2x2
C. 2x2x2x2x2
B. 2x3x3
D. 2x2x2x2
5. What is the greatest common factor of 16 and 24?
A6
C. 12
B. 8
D. 16
6. What is the least common multiple of 5 and 6?
A. 15
C. 45
B. 30
D. 60
7. Which of these fraction is in mixed form?
A. 2/5
C. 7/9
B. 5 1/2
D. 10/12
8. Which of these fractions is equal to 1?
A 2/3
C. 4/4
B. 4/5
D. 4/7
9. Which of the following is a proper fraction?
A. 773
C. 7/7
B. 2/5
D. 3 3/8
10. Which fraction names the shaded part of the rectangle?
A. 2/7
C. 5/7
B 4/7
D. 677
11. Which is a set of similar fractions?
A. 1/5, 2/5, 3/5
C. 1/2, 1/3, 1/4
B 1/4, 27, 3/8
D. 2/4, 3/5, 4/6
12. Which is the numerator in 9/12?
C. 11
B 10
D. 12
13. Which is a set of dissimilar fractions?
A 1/8, 5/8, 6/8
C. 2/8, 4/6, 3/4
B. 217, 3/7, 4/7
D. 5/8, 7/8, 3/8
14. Change 4 % to improper fraction?
A 1474
C 1114
B. 194
D. 6/4
15 Change 11/5 to mixed number?
A 2 415
C 2 215
B. 2 3/5
D. 2 1/5​