2桁同士の乗算

(1)

 
×
65
＝
2470

(2)

 
×
69
＝
3795

(3)

70
×
 
＝
1120

(4)

 
×
52
＝
1976

(5)

 
×
30
＝
960

(6)

64
×
 
＝
5824

(7)

61
×
 
＝
1342

(8)

51
×
 
＝
510

(9)

35
×
 
＝
735

(10)

 
×
54
＝
2268

(11)

 
×
14
＝
700

(12)

 
×
85
＝
7820

(13)

85
×
 
＝
5695

(14)

 
×
53
＝
2703

(15)

 
×
13
＝
1248

(16)

94
×
 
＝
7896