2桁同士の乗算

(1)

66
×
 
＝
4158

(2)

 
×
91
＝
8827

(3)

 
×
86
＝
6450

(4)

88
×
 
＝
2552

(5)

 
×
28
＝
1372

(6)

88
×
 
＝
2816

(7)

 
×
88
＝
6688

(8)

 
×
13
＝
585

(9)

88
×
 
＝
2640

(10)

 
×
62
＝
1550

(11)

40
×
 
＝
920

(12)

40
×
 
＝
3480

(13)

62
×
 
＝
4402

(14)

86
×
 
＝
6278

(15)

19
×
 
＝
399

(16)

11
×
 
＝
528