2桁同士の乗算

(1)

 
×
15
＝
525

(2)

 
×
66
＝
6336

(3)

85
×
 
＝
6375

(4)

22
×
 
＝
2068

(5)

18
×
 
＝
1080

(6)

 
×
80
＝
5200

(7)

 
×
72
＝
2016

(8)

35
×
 
＝
1365

(9)

11
×
 
＝
715

(10)

56
×
 
＝
5488

(11)

 
×
21
＝
672

(12)

 
×
74
＝
5254

(13)

83
×
 
＝
6972

(14)

 
×
52
＝
1352

(15)

97
×
 
＝
4753

(16)

21
×
 
＝
1386