2桁同士の乗算

(1)

 
×
16
＝
1152

(2)

 
×
53
＝
1272

(3)

39
×
 
＝
1833

(4)

58
×
 
＝
5626

(5)

65
×
 
＝
4810

(6)

 
×
80
＝
4640

(7)

 
×
40
＝
2160

(8)

33
×
 
＝
1485

(9)

81
×
 
＝
7209

(10)

85
×
 
＝
5270

(11)

36
×
 
＝
576

(12)

 
×
10
＝
730

(13)

 
×
63
＝
1890

(14)

 
×
33
＝
693

(15)

 
×
42
＝
2436

(16)

 
×
43
＝
2150