2桁同士の乗算

(1)

 
×
19
＝
1083

(2)

 
×
70
＝
3290

(3)

 
×
29
＝
870

(4)

 
×
92
＝
4140

(5)

 
×
51
＝
2550

(6)

 
×
85
＝
8075

(7)

 
×
18
＝
558

(8)

 
×
97
＝
5044

(9)

 
×
30
＝
300

(10)

71
×
 
＝
6674

(11)

 
×
12
＝
420

(12)

75
×
 
＝
6675

(13)

39
×
 
＝
624

(14)

 
×
35
＝
1505

(15)

 
×
36
＝
3204

(16)

 
×
45
＝
3735