Variable expressions Worksheet

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

1 a.   r3, when r = 9
   
 
 
 
 
1 b.  
10 , when u = 10
u
   
 
 
 
 
2 a.   g + b, when g = 2 and b = 9
   
 
 
 
 
2 b.  
d , when d = 5
10
   
 
 
 
 
3 a.   t – 2, when t = 4
   
 
 
 
 
3 b.  
4 , when a = 7
a
   
 
 
 
 
4 a.   rt, when r = 10 and t = 5
   
 
 
 
 
4 b.  
u , when u = 5
5
   
 
 
 
 
5 a.   d2, when d = 2
   
 
 
 
 
5 b.   d2, when d = 7
   
 
 
 
 
Page 2

Answer Key

1 a.  729

 
1 b.  1

 
2 a.  11

 
2 b.  1/2

 
3 a.  2

 
3 b.  4/7

 
4 a.  5

 
4 b.  1

 
5 a.  4

 
5 b.  49

 


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