$267\ -\ 234\ =$  

(a)  

 $674\ -\ 152\ =$  

(a)  

 $363\ -\ 178\ =$  

(a)  

 $783\ -\ 187\ =$  

(a)  

 $443\ -\ 174\ =$  

(a)  

 $167\ -\ 82\ =\$  

(a)  

 $564\ -\ 264\ =$  

(a)  

 $487\ -\ 342\ =$  

(a)  

 $500\ -\ 367\ =$  

(a)