Year 1 Lesson 11 In-class Exercise

Name ________________________

1). Evaluate these expressions for a = 3, b = 9:
a).
a  +  b =     +         =           
b) .
b  -   a =      -         =          
c).
3a  =        X         =           
d).
3a  +  b =      +        =       
e).
a  -  b =      -        =           
f).
ba   =         X       =          
g).
b/a =         /        =          
h).
3a  +  2b =       +      =      
i).
5a  -  b =      -       =          
j).
2ab =    2   X       X      =      
2). Evaluate these expressions for a = 7, b = 3, c = 14:
a).
ab =          =          
b).
3a/b =       =         
c).
ab - c =       =        
d).
c/a =          =        
e).
b - a  =        =        
f).
abc  =         =        
g).
4 a - 3 b =          =