2桁同士の乗算

(1)

 
×
12
＝
636

(2)

 
×
68
＝
1972

(3)

 
×
92
＝
8556

(4)

 
×
88
＝
5720

(5)

 
×
90
＝
7110

(6)

 
×
73
＝
1095

(7)

20
×
 
＝
480

(8)

58
×
 
＝
5046

(9)

85
×
 
＝
7990

(10)

30
×
 
＝
1500

(11)

93
×
 
＝
8277

(12)

 
×
10
＝
590

(13)

 
×
28
＝
2576

(14)

34
×
 
＝
2142

(15)

76
×
 
＝
912

(16)

57
×
 
＝
1938