C. 14
c. 21
3. Prime numbers are numbers with only 2 factors, 1 and itself.
Which of these numbers is prime?
a. 11
b. 12
d. 15
4. Composite numbers are numbers with 3 or more factors. 6 is a
composite number. You have 2x3 and 1 x 6. Among these given
numbers, which is the composite number?
a. 3
b. 5
C. 8
d. 11
5. If we skip count by 7, what is the 4th number?
a. 7
b. 14
d. 28
6. What are the factors of 18?
a. 1,2,3,6,9,18 b. 2,3,4,5,12 c. 3,4,6,10,12 d. 2,5,12
7. If we divide 36 by 6, what is the quotient?
a. 4
b. 6
c. 9
d. 12
8. What is the remainder if we divide 15 - 4?
a. 2
b. 3
c.4 d. 5
9. What is the quotient if we divide 28 = 2?
a. 8
b. 10
C. 12
d. 14
10. What is the 6th number if we skip count by 6?
a. 12
b. 18
C. 30
d. 36