Variable expressions Worksheet

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

1 a.  
1 t  , when t = 9
–1
   
 
 
 
 
1 b.   8.8(1 – (–6.6) r), when r = 0.6
   
 
 
 
 
2 a.  
c – (–5)  , when c = 10.5
–4
   
 
 
 
 
2 b.  
s – (–7)  , when s = –3.4
–2.8
   
 
 
 
 
3 a.   (8.2 + 3 d)3, when d = –2.5
   
 
 
 
 
3 b.   (–6.5 + 5 b)3, when b = –6
   
 
 
 
 
4 a.  
5  , when d = –2.8
–1.2 – d
   
 
 
 
 
4 b.  
x – (–7.6)  , when x = –2.2
–3
   
 
 
 
 
5 a.  
v – 8.8  , when v = –7.6
–5
   
 
 
 
 
5 b.  
–4 – 2 a  , when a = –1.2
7
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  -9

 
1 b.  43.648

 
2 a.  -3.875

 
2 b.  -1.286

 
3 a.  0.343

 
3 b.  -48627.125

 
4 a.  3.125

 
4 b.  -1.8

 
5 a.  3.28

 
5 b.  -0.229

 


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