2桁同士の乗算

(1)

77
×
 
＝
6699

(2)

12
×
 
＝
912

(3)

 
×
13
＝
1157

(4)

 
×
82
＝
2706

(5)

 
×
47
＝
1739

(6)

91
×
 
＝
8281

(7)

 
×
74
＝
6068

(8)

80
×
 
＝
1440

(9)

24
×
 
＝
720

(10)

 
×
57
＝
4161

(11)

 
×
34
＝
2040

(12)

 
×
71
＝
1349

(13)

 
×
48
＝
3072

(14)

26
×
 
＝
2080

(15)

99
×
 
＝
3861

(16)

85
×
 
＝
7395