Variable expressions Worksheet

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

1 a.  
r – 8  , when r = 4.4
8
   
 
 
 
 
1 b.   c3, when c = 10.6
   
 
 
 
 
2 a.  
k – 8  , when k = 4.3
10.5
   
 
 
 
 
2 b.  
t – 2.4  , when t = 2.9
8.6
   
 
 
 
 
3 a.  
s – 3.6  , when s = 8.8
5.1
   
 
 
 
 
3 b.  
z – 3  , when z = 6
7
   
 
 
 
 
4 a.  
r , when r = 3.2
2
   
 
 
 
 
4 b.   p – 2 + d, when p = 2.9 and d = 6.1
   
 
 
 
 
5 a.  
x – 4  , when x = 4.3
3
   
 
 
 
 
5 b.  
a – 2  , when a = 7.1
3
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  -0.45

 
1 b.  1191.016

 
2 a.  -0.352

 
2 b.  0.058

 
3 a.  1.02

 
3 b.  0.429

 
4 a.  1.6

 
4 b.  7

 
5 a.  0.1

 
5 b.  1.7

 


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