Variable expressions Worksheet

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

1 a.   (1.9 r – 6)3, when r = 9.5
   
 
 
 
 
1 b.  
q – 6  , when q = –1.9
2.6
   
 
 
 
 
2 a.  
g – (–2.2)  , when g = 5
1.7
   
 
 
 
 
2 b.   8.6(2 + (–5.5) y), when y = –2.1
   
 
 
 
 
3 a.  
p – 6  , when p = –7.4
–5.2
   
 
 
 
 
3 b.  
a – (–4)  , when a = –7.2
0.5
   
 
 
 
 
4 a.  
q – 4.2  , when q = –1.4
–2
   
 
 
 
 
4 b.  
6.3 – 6 k  , when k = –2
6
   
 
 
 
 
5 a.  
t – 3.6  , when t = 2
–1.3
   
 
 
 
 
5 b.  
w – (–3)  , when w = –4.7
–3
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  1749.690125

 
1 b.  -3.038

 
2 a.  4.235

 
2 b.  116.53

 
3 a.  2.577

 
3 b.  -6.4

 
4 a.  2.8

 
4 b.  3.05

 
5 a.  1.231

 
5 b.  0.567

 


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