2桁同士の乗算

(1)

 
×
48
＝
1824

(2)

22
×
 
＝
1276

(3)

27
×
 
＝
1755

(4)

 
×
55
＝
5390

(5)

68
×
 
＝
4148

(6)

23
×
 
＝
575

(7)

 
×
91
＝
6734

(8)

77
×
 
＝
3619

(9)

31
×
 
＝
2418

(10)

 
×
55
＝
3465

(11)

 
×
30
＝
480

(12)

85
×
 
＝
5355

(13)

 
×
85
＝
6885

(14)

 
×
79
＝
3476

(15)

78
×
 
＝
2028

(16)

37
×
 
＝
3441