9 x 2 x 2 = (a)  

7 x 4 x 2 =

(a)  

9 x 9 x 2 =

​ (a)  

63 : 7:3 =

​ (a)  

54 : 9: 2 =

​ (a)  

3 x 2 x 8 =

(a)  

72 : 9 =

(a)  

90 : 10 : 3 =

(a)  

36 : 6 : 3 =

(a)  

81 : 9 : 9 =

(a)  

5 x 2 x 9 =

(a)  

8 x 8 =

(a)  

7 x 7 =

(a)  

3 x 3 x 7 =

(a)  

64 : 8 : 4 =

(a)  

24 : 4 : 3 =

(a)  

16 : 4 : 2 =

(a)  

81 : 9 : 9 =

(a)  

4 x 2 x 6 =

(a)