2桁同士の乗算

(1)

 
×
40
＝
3520

(2)

12
×
 
＝
720

(3)

 
×
58
＝
5278

(4)

49
×
 
＝
4067

(5)

 
×
25
＝
1575

(6)

 
×
53
＝
2173

(7)

 
×
96
＝
2784

(8)

 
×
90
＝
6300

(9)

 
×
89
＝
7921

(10)

 
×
79
＝
1817

(11)

 
×
95
＝
8075

(12)

53
×
 
＝
1113

(13)

 
×
94
＝
940

(14)

19
×
 
＝
855

(15)

15
×
 
＝
1275

(16)

73
×
 
＝
6789