Variable expressions Worksheet

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

1 a.  
k – 3  , when k = 10.6
–6.9
   
 
 
 
 
1 b.  
x – (–1.3)  , when x = –8.1
4.4
   
 
 
 
 
2 a.   (–7 – (–7.5) s)2, when s = –4.2
   
 
 
 
 
2 b.  
a – 6.2  , when a = –6.1
–6.8
   
 
 
 
 
3 a.  
w – (–4)  , when w = 3.8
8.4
   
 
 
 
 
3 b.   (4 t + 4)2, when t = –2.3
   
 
 
 
 
4 a.  
r – (–1)  , when r = 10.3
–3.5
   
 
 
 
 
4 b.  
x – (–1)  , when x = –6.6
5
   
 
 
 
 
5 a.  
w – (–4.2)  , when w = 6.4
–3
   
 
 
 
 
5 b.  
6.8 g  , when g = 5.6 and a = 1
a2
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  -1.101

 
1 b.  -1.545

 
2 a.  1482.25

 
2 b.  1.809

 
3 a.  0.929

 
3 b.  27.04

 
4 a.  -3.229

 
4 b.  -1.12

 
5 a.  -3.533

 
5 b.  38.08

 


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