Variable expressions Worksheet

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

1 a.  
g – 6.4  , when g = 8.1
9
   
 
 
 
 
1 b.  
v – 5  , when v = 2.9
9
   
 
 
 
 
2 a.  
b – 3.1  , when b = 9.9
6.9
   
 
 
 
 
2 b.   k3, when k = 7.7
   
 
 
 
 
3 a.  
x – 6  , when x = 9.8
4
   
 
 
 
 
3 b.   g + 6, when g = 8
   
 
 
 
 
4 a.   u2, when u = 9.8
   
 
 
 
 
4 b.  
r – 3.6  , when r = 9.5
8
   
 
 
 
 
5 a.   6 r w, when r = 10.9 and w = 10.3
   
 
 
 
 
5 b.   y + s + 5, when y = 5.3 and s = 8.3
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  0.189

 
1 b.  -0.233

 
2 a.  0.986

 
2 b.  456.533

 
3 a.  0.95

 
3 b.  14

 
4 a.  96.04

 
4 b.  0.738

 
5 a.  673.62

 
5 b.  18.6

 


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