I. Tell whether the first number is a factor of the second. Write Yes or No before each number.
1. 12, 36
2. 22, 40
3. 5, 65
4. 18, 54
5. 2, 70
II. Write the first five multiples of the given number.
6. 7 - ________
7. 9 - _________
8. 11 - ________
9. 4 - _______
10. 6 - _______
III. Choose the letter of the correct answer.
11. What is the GCF of 24 and 16?
a. 2
b. 3
c. 4
d. 8
12. Which of the following number is the GCF of 15 and 35?
a. 3
b. 15
c. 5
d. 7
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Answer:
I.
1) yes
2) no
3) yes
4) yes
5) yes
II.
6) 7,14,21,28,35
7) 9,18,27,36,45
8) 11,22,33,44,55
9) 4,8,12,16,20
10) 6,12,18,24,30
III.
11) C
12) C