Variable expressions Worksheet

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

1 a.  
r , when r = 3
2
   
 
 
 
 
1 b.   r3, when r = 6
   
 
 
 
 
2 a.  
g – 6  , when g = 7
8
   
 
 
 
 
2 b.   yg – 2, when y = 2 and g = 2
   
 
 
 
 
3 a.   n5, when n = 5
   
 
 
 
 
3 b.  
z – 3  , when z = 9
7
   
 
 
 
 
4 a.  
d – 7  , when d = 8
3
   
 
 
 
 
4 b.  
c – 4  , when c = 10
4
   
 
 
 
 
5 a.   y – 4 + d, when y = 6 and d = 6
   
 
 
 
 
5 b.   n + 8 + s, when n = 7 and s = 5
   
 
 
 
 
Page 2

Answer Key

1 a.  1 1/2

 
1 b.  216

 
2 a.  1/8

 
2 b.  -2

 
3 a.  3125

 
3 b.  6/7

 
4 a.  1/3

 
4 b.  1 1/2

 
5 a.  8

 
5 b.  20

 


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