Variable expressions Worksheet

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

1 a.  
z – 4  , when z = –5.9
–1
   
 
 
 
 
1 b.  
w – 4  , when w = –6.1
8.8
   
 
 
 
 
2 a.   (1.5 k + (–5))2, when k = –1.4
   
 
 
 
 
2 b.  
7.4 ry  , when r = –6.9 and y = 3
1
   
 
 
 
 
3 a.  
u – (–3.7)  , when u = 1.6
0
   
 
 
 
 
3 b.  
p – (–7.5)  , when p = 3.5
6
   
 
 
 
 
4 a.   –1.7(6 – (–0.3) q), when q = –1.1
   
 
 
 
 
4 b.  
z – (–2)  , when z = 10.2
7
   
 
 
 
 
5 a.  
z – 8  , when z = 10.1
8
   
 
 
 
 
5 b.  
v – (–4)  , when v = 1.2
0.1
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  9.9

 
1 b.  -1.148

 
2 a.  50.41

 
2 b.  -54.06

 
3 a.  0

 
3 b.  1.833

 
4 a.  -9.639

 
4 b.  1.743

 
5 a.  0.263

 
5 b.  52

 


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