Variable expressions Worksheet

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

1 a.  
g – 1  , when g = 8.4
9.9
   
 
 
 
 
1 b.   s2, when s = 2.7
   
 
 
 
 
2 a.  
b – 5.2  , when b = 6.5
2.2
   
 
 
 
 
2 b.  
x – 1.1  , when x = 4.7
6
   
 
 
 
 
3 a.   6 + c, when c = 9.2
   
 
 
 
 
3 b.   4 q g, when q = 8.3 and g = 1.4
   
 
 
 
 
4 a.   b + 5 + d, when b = 1.6 and d = 5.6
   
 
 
 
 
4 b.  
y – 3.5  , when y = 6.8
7.1
   
 
 
 
 
5 a.   4 k y, when k = 7 and y = 6.7
   
 
 
 
 
5 b.  
a – 3  , when a = 4.3
2
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  0.747

 
1 b.  7.29

 
2 a.  0.591

 
2 b.  0.6

 
3 a.  15.2

 
3 b.  46.48

 
4 a.  12.2

 
4 b.  0.465

 
5 a.  187.6

 
5 b.  0.65

 


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