2桁同士の乗算

(1)

 
×
93
＝
8370

(2)

 
×
18
＝
540

(3)

 
×
40
＝
3200

(4)

16
×
 
＝
384

(5)

15
×
 
＝
210

(6)

32
×
 
＝
864

(7)

97
×
 
＝
4753

(8)

 
×
42
＝
3234

(9)

 
×
85
＝
2125

(10)

 
×
91
＝
5642

(11)

82
×
 
＝
7134

(12)

 
×
12
＝
1020

(13)

 
×
61
＝
1403

(14)

31
×
 
＝
1798

(15)

98
×
 
＝
9702

(16)

29
×
 
＝
2668