$205\ +\ 356\ =$  

(a)  

 $432\ +\ 277\ =$  

(a)  

 $365\ +\ 135\ =$  

(a)  

 $482\ +\ 144\ =$  

(a)  

 $358\ +\ 123\ =$  

(a)  

 $359\ +\ 322\ =$  

(a)  

 $198\ +\ 320\ =$  

(a)  

 $236\ +\ 426\ =$  

(a)  

 $208\ +\ 345\ =$  

(a)  

 $234\ +\ 458\ =$  

(a)  

 $362\ +\ 246\ =$  

(a)  

 $280\ +\ 453\ =$  

(a)  

 $432\ +\ 358\ =$  

(a)