2桁同士の乗算

(1)

 
×
89
＝
1513

(2)

 
×
31
＝
1829

(3)

33
×
 
＝
1287

(4)

85
×
 
＝
6290

(5)

 
×
19
＝
475

(6)

 
×
91
＝
2184

(7)

 
×
88
＝
3960

(8)

 
×
89
＝
1602

(9)

14
×
 
＝
1176

(10)

13
×
 
＝
1287

(11)

 
×
41
＝
615

(12)

 
×
19
＝
1501

(13)

41
×
 
＝
3608

(14)

 
×
39
＝
3159

(15)

18
×
 
＝
378

(16)

 
×
62
＝
4402