2桁同士の乗算

(1)

83
×
 
＝
3984

(2)

86
×
 
＝
6708

(3)

54
×
 
＝
1620

(4)

81
×
 
＝
3159

(5)

34
×
 
＝
2822

(6)

 
×
98
＝
5194

(7)

90
×
 
＝
2790

(8)

 
×
42
＝
1932

(9)

 
×
12
＝
876

(10)

18
×
 
＝
954

(11)

 
×
76
＝
3724

(12)

 
×
57
＝
5301

(13)

 
×
85
＝
4165

(14)

36
×
 
＝
1404

(15)

70
×
 
＝
3010

(16)

44
×
 
＝
2376