2桁同士の乗算

(1)

 
×
62
＝
5642

(2)

 
×
83
＝
5312

(3)

 
×
28
＝
2100

(4)

 
×
48
＝
3264

(5)

 
×
47
＝
4653

(6)

 
×
60
＝
4320

(7)

34
×
 
＝
510

(8)

13
×
 
＝
559

(9)

 
×
42
＝
1890

(10)

 
×
62
＝
3534

(11)

 
×
93
＝
2976

(12)

 
×
77
＝
1001

(13)

 
×
79
＝
1264

(14)

12
×
 
＝
720

(15)

 
×
46
＝
460

(16)

34
×
 
＝
782