Variable expressions Worksheet

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

1 a.  
a – (–8)  , when a = 1.5
3.5
   
 
 
 
 
1 b.  
p – 6  , when p = –9.8
–4
   
 
 
 
 
2 a.  
c – 1.6  , when c = –6.4
0.1
   
 
 
 
 
2 b.  
1 yv  , when y = 6.8 and v = 7.9
–6
   
 
 
 
 
3 a.  
g – (–7)  , when g = –2.9
–2
   
 
 
 
 
3 b.  
w – 1.9  , when w = –4.7
2
   
 
 
 
 
4 a.  
y – 7  , when y = –8.7
7.2
   
 
 
 
 
4 b.   (–5 r – 8 w)2, when r = –2.1 and w = 10.2
   
 
 
 
 
5 a.  
p – 7.6  , when p = –1.2
6.6
   
 
 
 
 
5 b.   (1 – (–6) k)2, when k = 3.7
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  2.714

 
1 b.  3.95

 
2 a.  -80

 
2 b.  0.183

 
3 a.  -2.05

 
3 b.  -3.3

 
4 a.  -2.181

 
4 b.  5055.21

 
5 a.  -1.333

 
5 b.  538.24

 


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