2桁同士の乗算

(1)

74
×
 
＝
5106

(2)

62
×
 
＝
5952

(3)

 
×
77
＝
5698

(4)

80
×
 
＝
7920

(5)

 
×
74
＝
2146

(6)

46
×
 
＝
4416

(7)

 
×
81
＝
7776

(8)

20
×
 
＝
220

(9)

 
×
57
＝
5529

(10)

37
×
 
＝
2035

(11)

 
×
86
＝
7052

(12)

 
×
82
＝
6806

(13)

35
×
 
＝
1610

(14)

 
×
35
＝
1015

(15)

93
×
 
＝
1674

(16)

 
×
31
＝
651