3 x 8 =

(a)  

80 x 40 =

(a)  

9 x 4 =

(a)  

400 x 9000 =

(a)  

56 : 8 =

(a)  

640 : 8 =

(a)  

1800 : 600 =

(a)  

6900 : 3 =

(a)  

54000 : 60 =

(a)