2桁同士の乗算

(1)

 
×
71
＝
3834

(2)

17
×
 
＝
527

(3)

53
×
 
＝
4346

(4)

 
×
31
＝
2294

(5)

 
×
79
＝
5451

(6)

 
×
93
＝
8184

(7)

 
×
77
＝
1617

(8)

 
×
89
＝
8188

(9)

 
×
50
＝
850

(10)

 
×
28
＝
2744

(11)

96
×
 
＝
6720

(12)

 
×
82
＝
4182

(13)

 
×
63
＝
2898

(14)

97
×
 
＝
1649

(15)

10
×
 
＝
560

(16)

 
×
61
＝
5856