Variable expressions Worksheet

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

1 a.  
7 aw  , when a = 9 and w = 7
3
   
 
 
 
 
1 b.   (8 – 9 u)2, when u = 3
   
 
 
 
 
2 a.  
x – 7  , when x = 6
6
   
 
 
 
 
2 b.  
5 x + s  , when x = 3
10
   
 
 
 
 
3 a.   2(2 + 6 n), when n = 8
   
 
 
 
 
3 b.   (5 q + 3)3, when q = 9
   
 
 
 
 
4 a.  
6 t + u  , when t = 8
7
   
 
 
 
 
4 b.  
8 – g  , when g = 9
2
   
 
 
 
 
5 a.  
u – 6  , when u = 9
8
   
 
 
 
 
5 b.  
6 x  , when x = 7 and d = 1
d
   
 
 
 
 
Page 2

Answer Key

1 a.  18 2/3

 
1 b.  361

 
2 a.  -1/6

 
2 b.  1 4/5

 
3 a.  100

 
3 b.  110592

 
4 a.  7 4/7

 
4 b.  -1/2

 
5 a.  3/8

 
5 b.  42

 


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