Variable expressions Worksheet

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

1 a.   (2 k + (–3.8))3, when k = –8.5
   
 
 
 
 
1 b.   (8 p – 2)3, when p = –5.6
   
 
 
 
 
2 a.  
u – 8.1  , when u = –8.1
2
   
 
 
 
 
2 b.   (–8 x + 6 k)2, when x = –7.8 and k = 1.3
   
 
 
 
 
3 a.   (7.4 k – (–2))2, when k = 7.6
   
 
 
 
 
3 b.   (2 d – 7)2, when d = –3.3
   
 
 
 
 
4 a.  
u – (–5.3)  , when u = –9.7
–6
   
 
 
 
 
4 b.   (–3.5 – (–6.1) u)2, when u = 8.1
   
 
 
 
 
5 a.   (6 – 6 w)3, when w = –5.4
   
 
 
 
 
5 b.  
v – (–3.7)  , when v = 10.3
–6
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  -8998.912

 
1 b.  -102503.232

 
2 a.  -8.1

 
2 b.  4928.04

 
3 a.  3391.8976

 
3 b.  184.96

 
4 a.  0.733

 
4 b.  2107.7281

 
5 a.  56623.104

 
5 b.  -2.333

 


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