2桁同士の乗算

(1)

 
×
79
＝
7663

(2)

 
×
45
＝
1800

(3)

88
×
 
＝
7568

(4)

51
×
 
＝
969

(5)

 
×
27
＝
1620

(6)

92
×
 
＝
2300

(7)

77
×
 
＝
3388

(8)

28
×
 
＝
280

(9)

 
×
58
＝
928

(10)

42
×
 
＝
924

(11)

 
×
77
＝
4158

(12)

 
×
88
＝
7568

(13)

41
×
 
＝
3075

(14)

 
×
55
＝
2420

(15)

67
×
 
＝
3216

(16)

56
×
 
＝
2240