2桁同士の乗算

(1)

83
×
 
＝
1411

(2)

 
×
65
＝
4810

(3)

 
×
69
＝
2484

(4)

 
×
63
＝
3402

(5)

 
×
15
＝
705

(6)

83
×
 
＝
2656

(7)

33
×
 
＝
1551

(8)

 
×
30
＝
1290

(9)

 
×
37
＝
703

(10)

 
×
39
＝
2730

(11)

75
×
 
＝
7350

(12)

55
×
 
＝
4840

(13)

63
×
 
＝
5985

(14)

 
×
37
＝
3367

(15)

 
×
21
＝
231

(16)

40
×
 
＝
3440