2桁同士の乗算

(1)

58
×
21
＝
 

(2)

92
×
88
＝
 

(3)

45
×
44
＝
 

(4)

58
×
71
＝
 

(5)

47
×
25
＝
 

(6)

87
×
4
＝
 

(7)

31
×
45
＝
 

(8)

10
×
21
＝
 

(9)

70
×
44
＝
 

(10)

2
×
81
＝
 

(11)

92
×
1
＝
 

(12)

23
×
70
＝
 

(13)

12
×
88
＝
 

(14)

32
×
60
＝
 

(15)

42
×
16
＝
 

(16)

91
×
70
＝