36 x 4 =

(a)  

24 x 4 =

(a)  

13 x 4 =

(a)  

53 x 2 =

(a)  

41 x 2 =

(a)  

38 x 2 =

(a)  

72 x 2 =

(a)  

69 x 2 =

(a)  

57 x 2 =

(a)  

45 x 2 =

(a)  

43 x 2 =

(a)  

16 : 2 =

(a)  

70 : 2 =

(a)  

90 : 2 =

(a)  

82 : 2 =

(a)  

45 : 9 =

(a)  

18 : 9 =

(a)  

24 : 4 =

(a)  

40 : 4 =

(a)  

18 : 3 =

(a)  

32 x 20 =

(a)  

45 x 20 =

(a)  

748 - 30 =

(a)  

691 - 70 =

(a)  

269 - 60 =

(a)  

384 - 50 =

(a)  

924 + 50 =

(a)  

437 + 60 =

(a)  

365 + 20 =

(a)  

821 + 70 =

(a)  

539 + 40 =

(a)  

9 x 9 =

(a)  

8 x 6 =

(a)  

5 x 7 =

(a)  

6 x 8 =

(a)  

86 - 50 =

(a)  

48 - 30 =

(a)  

9 x 4 =

(a)  

7 x 8 =

(a)  

4 x 4 =

(a)  

3 x 7 =

(a)  

10 x 4 + 2 =

(a)  

8 x 3 - 4 =

(a)  

5 x 6 + 5 =

(a)  

8 x 10 + 9 =

(a)  

5 x 9 + 6 =

(a)  

8 x 7 + 5 =

(a)  

10 x 9 + 10 =

(a)  

6 x 8 + 3 =

(a)  

8 x 2 + 7 =

(a)  

3 x 3 - 4 =

(a)  

10 x 2 - 2 =

(a)  

2 x 9 - 10 =

(a)  

3 x 7 - 6 =

(a)  

8 x 5 - 9 =

(a)  

3 x 4 - 4 =

(a)  

10 x 6 - 7 =

(a)  

9 x 5 - 4 =

(a)  

7 x 6 - 7 =

(a)  

3 x 10 - 5 =

(a)  

6 x 9 - 10 =

(a)  

3 x 5 + 2 =

(a)  

9 x 4 + 5 =

(a)  

10 x 5 + 7 =

(a)  

4 x 8 + 9 =

(a)  

6 x 9 + 7 =

(a)  

8 x 4 + 9 =

(a)  

5 x 8 + 5 =

(a)  

5 x 2 + 9 =

(a)