Variable expressions Worksheet

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

1 a.  
8 , when r = 5
r
   
 
 
 
 
1 b.   4 + y, when y = 5
   
 
 
 
 
2 a.  
b – 6  , when b = 3
8
   
 
 
 
 
2 b.  
q – 4  , when q = 5
8
   
 
 
 
 
3 a.  
z – 5  , when z = 5
8
   
 
 
 
 
3 b.  
d – 7  , when d = 7
6
   
 
 
 
 
4 a.   x – 2 + a, when x = 8 and a = 9
   
 
 
 
 
4 b.   r + b, when r = 3 and b = 10
   
 
 
 
 
5 a.   k – 7 + n, when k = 8 and n = 2
   
 
 
 
 
5 b.   z2, when z = 10
   
 
 
 
 
Page 2

Answer Key

1 a.  1 3/5

 
1 b.  9

 
2 a.  -3/8

 
2 b.  1/8

 
3 a.  0

 
3 b.  0

 
4 a.  15

 
4 b.  13

 
5 a.  3

 
5 b.  100

 


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