Variable expressions Worksheet

Find the value of the expressions for the given values of the variable(s).

1 a.  
3 b + 2  , when b = 1
8
   
 
 
 
 
1 b.  
6 b  , when b = 7
8
   
 
 
 
 
2 a.   (6 r – 4)2, when r = 8
   
 
 
 
 
2 b.   2(7 – 5 b), when b = 9
   
 
 
 
 
3 a.  
y – 3  , when y = 2
7
   
 
 
 
 
3 b.  
2 p  , when p = 6 and s = 2
s2
   
 
 
 
 
4 a.  
u – 7  , when u = 3
9
   
 
 
 
 
4 b.  
7  , when w = 2
6 – w
   
 
 
 
 
5 a.   (2 – 2 n)2, when n = 9
   
 
 
 
 
5 b.  
z – 4  , when z = 1
7
   
 
 
 
 
Page 2

Answer Key

1 a.  5/8

 
1 b.  5 1/4

 
2 a.  1936

 
2 b.  -76

 
3 a.  -1/7

 
3 b.  3

 
4 a.  -4/9

 
4 b.  1 3/4

 
5 a.  256

 
5 b.  -3/7

 


Copying permission: You are free to copy this worksheet to any number of students for their mathematics work. Do not distribute on websites, books, or any such material without permission. Copyright www.HomeschoolMath.net