Variable expressions Worksheet

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

1 a.   (2.3 v – (–3))2, when v = –0.5
   
 
 
 
 
1 b.  
x – (–4)  , when x = 7.4
–3
   
 
 
 
 
2 a.  
2.8 x  , when x = 0.3 and d = 9.8
d
   
 
 
 
 
2 b.  
v – 8.9  , when v = –0.5
–6.3
   
 
 
 
 
3 a.  
u – (–1.7)  , when u = 4.9
2
   
 
 
 
 
3 b.  
n – (–6)  , when n = 7.4
–5
   
 
 
 
 
4 a.   (–5 + (–6.3) p)2, when p = –2.4
   
 
 
 
 
4 b.  
b – (–4.4)  , when b = 4.8
6.2
   
 
 
 
 
5 a.  
y – 8.2  , when y = –9.7
–6.2
   
 
 
 
 
5 b.  
–4.9  , when v = 6
–4 v
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  3.4225

 
1 b.  -3.8

 
2 a.  0.086

 
2 b.  1.492

 
3 a.  3.3

 
3 b.  -2.68

 
4 a.  102.4144

 
4 b.  1.484

 
5 a.  2.887

 
5 b.  0.204

 


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