Variable expressions Worksheet

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

1 a.  
4 a  , when a = 8 and c = 9
c
   
 
 
 
 
1 b.  
c – 7  , when c = 8
6
   
 
 
 
 
2 a.   8(8 – 7 y), when y = 4
   
 
 
 
 
2 b.   5 b + 6 q + 5, when b = 3 and q = 8
   
 
 
 
 
3 a.   (5 b – 6)5, when b = 2
   
 
 
 
 
3 b.  
2 q + 2  , when q = 2
2
   
 
 
 
 
4 a.  
p – 4  , when p = 4
4
   
 
 
 
 
4 b.  
d – 4  , when d = 9
4
   
 
 
 
 
5 a.  
k – 3  , when k = 1
3
   
 
 
 
 
5 b.  
u – 7  , when u = 3
3
   
 
 
 
 
Page 2

Answer Key

1 a.  3 5/9

 
1 b.  1/6

 
2 a.  -160

 
2 b.  68

 
3 a.  1024

 
3 b.  3

 
4 a.  0

 
4 b.  1 1/4

 
5 a.  -2/3

 
5 b.  -1 1/3

 


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