2桁同士の乗算

(1)

 
×
57
＝
3306

(2)

41
×
 
＝
1804

(3)

36
×
 
＝
2052

(4)

13
×
 
＝
494

(5)

72
×
 
＝
5256

(6)

12
×
 
＝
432

(7)

 
×
24
＝
264

(8)

23
×
 
＝
1127

(9)

16
×
 
＝
1504

(10)

 
×
84
＝
5040

(11)

74
×
 
＝
5254

(12)

56
×
 
＝
2968

(13)

20
×
 
＝
1840

(14)

 
×
58
＝
4234

(15)

38
×
 
＝
3724

(16)

 
×
51
＝
2448