Variable expressions Worksheet

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

1 a.   u + r, when u = 4 and r = 10
   
 
 
 
 
1 b.   x3, when x = 5
   
 
 
 
 
2 a.  
a – 2  , when a = 3
8
   
 
 
 
 
2 b.   wd – 3, when w = 10 and d = 4
   
 
 
 
 
3 a.  
4 , when t = 6
t
   
 
 
 
 
3 b.  
n – 3  , when n = 6
10
   
 
 
 
 
4 a.   d5, when d = 8
   
 
 
 
 
4 b.   v – 6 + a, when v = 9 and a = 5
   
 
 
 
 
5 a.  
a – 2  , when a = 6
8
   
 
 
 
 
5 b.   b3, when b = 9
   
 
 
 
 
Page 2

Answer Key

1 a.  14

 
1 b.  125

 
2 a.  1/8

 
2 b.  3

 
3 a.  2/3

 
3 b.  3/10

 
4 a.  32768

 
4 b.  8

 
5 a.  1/2

 
5 b.  729

 


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