2桁同士の乗算

(1)

80
×
 
＝
2160

(2)

 
×
11
＝
748

(3)

 
×
41
＝
3567

(4)

57
×
 
＝
2337

(5)

 
×
85
＝
2635

(6)

 
×
47
＝
4277

(7)

83
×
 
＝
1743

(8)

 
×
45
＝
2745

(9)

51
×
 
＝
2448

(10)

38
×
 
＝
1140

(11)

 
×
91
＝
8736

(12)

 
×
40
＝
3800

(13)

73
×
 
＝
5913

(14)

 
×
14
＝
266

(15)

 
×
67
＝
5494

(16)

90
×
 
＝
3060