2桁同士の乗算

(1)

 
×
11
＝
990

(2)

 
×
52
＝
3900

(3)

 
×
17
＝
1666

(4)

 
×
38
＝
684

(5)

 
×
12
＝
120

(6)

 
×
41
＝
451

(7)

 
×
46
＝
506

(8)

 
×
15
＝
1425

(9)

11
×
 
＝
363

(10)

 
×
35
＝
1995

(11)

49
×
 
＝
3136

(12)

96
×
 
＝
960

(13)

63
×
 
＝
1260

(14)

 
×
44
＝
3300

(15)

 
×
70
＝
3570

(16)

64
×
 
＝
832