Variable expressions Worksheet

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

1 a.  
c – 1  , when c = 10.5
8.5
   
 
 
 
 
1 b.   v + a, when v = 7 and a = 1.8
   
 
 
 
 
2 a.   c + y + 5, when c = 6.2 and y = 5.1
   
 
 
 
 
2 b.  
n – 5  , when n = 6.3
3
   
 
 
 
 
3 a.   t + 1, when t = 10.5
   
 
 
 
 
3 b.   w – 2, when w = 3.9
   
 
 
 
 
4 a.  
z – 4  , when z = 3.8
6
   
 
 
 
 
4 b.   c + g + 7, when c = 7.7 and g = 4.1
   
 
 
 
 
5 a.   wa, when w = 2.5 and a = 7.6
   
 
 
 
 
5 b.  
z – 3  , when z = 10.4
4
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  1.118

 
1 b.  8.8

 
2 a.  16.3

 
2 b.  0.433

 
3 a.  11.5

 
3 b.  1.9

 
4 a.  -0.033

 
4 b.  18.8

 
5 a.  -5.1

 
5 b.  1.85

 


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