Variable expressions Worksheet

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

1 a.  
–2.3 d + 4.2  , when d = –2
–5
   
 
 
 
 
1 b.   1(5 – 1 y), when y = 8
   
 
 
 
 
2 a.  
–7.6 c + p  , when c = –1.8
6
   
 
 
 
 
2 b.  
b – (–2.1)  , when b = 6.8
5
   
 
 
 
 
3 a.  
t – 5  , when t = 5.2
2.6
   
 
 
 
 
3 b.   (–1.4 + 7.7 z)2, when z = 1.1
   
 
 
 
 
4 a.  
y – 3.3  , when y = 2.8
–0.4
   
 
 
 
 
4 b.  
–2 s + 1  , when s = 1.7
–8
   
 
 
 
 
5 a.  
q – 7  , when q = –0.6
–3
   
 
 
 
 
5 b.  
–1 – d  , when d = –7.3
5.2
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  -1.76

 
1 b.  -3

 
2 a.  3.38

 
2 b.  1.78

 
3 a.  0.077

 
3 b.  49.9849

 
4 a.  1.25

 
4 b.  0.3

 
5 a.  2.533

 
5 b.  1.212

 


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