Variable expressions Worksheet

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

1 a.  
3.3 – (–5) w  , when w = –9.7
–8
   
 
 
 
 
1 b.  
q – 5  , when q = 1.4
–4.3
   
 
 
 
 
2 a.   (–4.6 y + (–2.7))3, when y = –10
   
 
 
 
 
2 b.   –5(3 + 3.2 p), when p = 4.9
   
 
 
 
 
3 a.   (4.4 + 2 q)2, when q = 9.9
   
 
 
 
 
3 b.  
c – (–7)  , when c = 10.2
–3.9
   
 
 
 
 
4 a.   –5(–1 – 2 r), when r = –1.2
   
 
 
 
 
4 b.   5.2(8 – (–2.4) k), when k = 9.5
   
 
 
 
 
5 a.  
y – 1  , when y = 1.3
–5.5
   
 
 
 
 
5 b.   (1.3 x + 2)2, when x = 5.3
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  5.65

 
1 b.  0.837

 
2 a.  81182.737

 
2 b.  -93.4

 
3 a.  585.64

 
3 b.  -4.41

 
4 a.  -7

 
4 b.  160.16

 
5 a.  -0.055

 
5 b.  79.0321

 


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