2桁同士の乗算

(1)

55
×
 
＝
3465

(2)

90
×
 
＝
3150

(3)

38
×
 
＝
2812

(4)

36
×
 
＝
1944

(5)

 
×
94
＝
1128

(6)

50
×
 
＝
2050

(7)

81
×
 
＝
3321

(8)

 
×
83
＝
5478

(9)

83
×
 
＝
6391

(10)

88
×
 
＝
4488

(11)

 
×
78
＝
2262

(12)

49
×
 
＝
2303

(13)

 
×
64
＝
5312

(14)

 
×
61
＝
3416

(15)

 
×
71
＝
1491

(16)

10
×
 
＝
720