2桁同士の乗算

(1)

42
×
 
＝
588

(2)

44
×
 
＝
1936

(3)

 
×
85
＝
1870

(4)

64
×
 
＝
1984

(5)

63
×
 
＝
3969

(6)

 
×
50
＝
3650

(7)

41
×
 
＝
533

(8)

 
×
25
＝
2050

(9)

 
×
58
＝
2900

(10)

 
×
47
＝
517

(11)

 
×
39
＝
1287

(12)

 
×
75
＝
6375

(13)

53
×
 
＝
2438

(14)

76
×
 
＝
5624

(15)

82
×
 
＝
3116

(16)

 
×
18
＝
1728