1. a. List all of the prime numbers from 120 to 145.

b. List the first seven multiples of 8.

c. List the square numbers between 100 and 200.

d. List the composite numbers between 10 and 20.

2. Give the factors of the following numbers:

 

(a) 6

(b) 24

(c) 25

(d) 43

(e) 64

(f) 80

3. Write the following numbers in terms of their prime factors:

 

(a) 6

(b) 18

(c) 19

(d) 24

(e) 64

(f) 50

4. Write in exponent form:

 

(a) 3 x 3 x 3

(b) 2 x 2 x 5 x 5 x 5

(c) 2 x 7 x 2 x 7 x 2

(d) 2 x 3 x 5 x 2

(e) 3 x 4 x 9 x 8

(f) 9 x 3 x 27

5. Find the reciprocals of the following numbers (give the answer as a decimal and as a fraction):

 

(a) 2

(b) 4/5

(c) 10

(d) 0.4

(e) 3 4/7

(f) 1 1/100

6. Find the value of:

 

(a) 92

(b) √144

(c) 1/ 0.5

(d) √(1/4)

(e) 27

(f) (0.5)3

7. Find the highest common factor of:

 

(a) 8 and 12

(b) 20 and 30

(c) 45 and 60

8. Find the lowest common multiple of:

 

(a) 4 and 5

(b) 6 and 8

(c)10 and 12