2桁同士の乗算

(1)

72
×
 
＝
6912

(2)

 
×
12
＝
444

(3)

84
×
 
＝
7728

(4)

36
×
 
＝
2520

(5)

 
×
77
＝
847

(6)

88
×
 
＝
3256

(7)

 
×
34
＝
1428

(8)

80
×
 
＝
7200

(9)

 
×
33
＝
2244

(10)

76
×
 
＝
5016

(11)

98
×
 
＝
1078

(12)

 
×
42
＝
3990

(13)

68
×
 
＝
4488

(14)

88
×
 
＝
8008

(15)

 
×
37
＝
1480

(16)

 
×
17
＝
408

(17)

 
×
18
＝
756

(18)

97
×
 
＝
7178

(19)

 
×
30
＝
990

(20)

 
×
34
＝
2754

(21)

 
×
77
＝
3773

(22)

 
×
54
＝
3942

(23)

41
×
 
＝
1968

(24)

 
×
28
＝
420

(25)

 
×
80
＝
4240

(26)

 
×
68
＝
680

(27)

 
×
50
＝
2200

(28)

 
×
54
＝
1998

(29)

16
×
 
＝
1104

(30)

70
×
 
＝
6650

(31)

63
×
 
＝
3969

(32)

 
×
75
＝
5550