Variable expressions Worksheet

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

1 a.  
a – 8  , when a = 1
4
   
 
 
 
 
1 b.  
r – 8  , when r = 6
3
   
 
 
 
 
2 a.  
p – 4  , when p = 10
2
   
 
 
 
 
2 b.   ns, when n = 3 and s = 2
   
 
 
 
 
3 a.   s2, when s = 8
   
 
 
 
 
3 b.   5 s u, when s = 6 and u = 1
   
 
 
 
 
4 a.  
p – 7  , when p = 5
7
   
 
 
 
 
4 b.   q – 8, when q = 1
   
 
 
 
 
5 a.  
c – 5  , when c = 9
8
   
 
 
 
 
5 b.   3 k w, when k = 1 and w = 10
   
 
 
 
 
Page 2

Answer Key

1 a.  -1 3/4

 
1 b.  -2/3

 
2 a.  3

 
2 b.  1

 
3 a.  64

 
3 b.  30

 
4 a.  -2/7

 
4 b.  -7

 
5 a.  1/2

 
5 b.  30

 


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