2桁同士の乗算

(1)

 
×
31
＝
3069

(2)

 
×
63
＝
5355

(3)

 
×
76
＝
2356

(4)

68
×
 
＝
5032

(5)

26
×
 
＝
1040

(6)

 
×
88
＝
3872

(7)

48
×
 
＝
1440

(8)

 
×
37
＝
3145

(9)

 
×
10
＝
760

(10)

16
×
 
＝
480

(11)

 
×
20
＝
1120

(12)

51
×
 
＝
2805

(13)

45
×
 
＝
855

(14)

 
×
78
＝
5382

(15)

 
×
67
＝
4422

(16)

 
×
87
＝
1131