Variable expressions Worksheet

Evaluate the expressions for the given values of the variable(s).

1 a.  
r – 5.4  , when r = 4.9
1.3
   
 
 
 
 
1 b.  
b – (–7)  , when b = –3
0.5
   
 
 
 
 
2 a.  
c – (–6.5)  , when c = 1.3
–1.5
   
 
 
 
 
2 b.  
s – (–2.2)  , when s = 9.7
–5.5
   
 
 
 
 
3 a.   (6 + 2.3 q)2, when q = –9.3
   
 
 
 
 
3 b.  
–5.4 d + 3  , when d = 2.8
8
   
 
 
 
 
4 a.   (–4.9 + (–0.7) n)2, when n = 5
   
 
 
 
 
4 b.  
–3 s  , when s = 5.6 and r = 1.6
r
   
 
 
 
 
5 a.  
p – 5  , when p = 5
–5.3
   
 
 
 
 
5 b.  
t – 6  , when t = 8.7
–8
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  -0.385

 
1 b.  8

 
2 a.  -5.2

 
2 b.  -2.164

 
3 a.  236.8521

 
3 b.  -1.515

 
4 a.  70.56

 
4 b.  -10.5

 
5 a.  0

 
5 b.  -0.338

 


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