2桁同士の乗算

(1)

25
×
 
＝
1025

(2)

35
×
 
＝
1750

(3)

 
×
68
＝
1156

(4)

46
×
 
＝
4370

(5)

 
×
35
＝
1750

(6)

 
×
36
＝
2556

(7)

 
×
18
＝
900

(8)

 
×
81
＝
2916

(9)

 
×
32
＝
832

(10)

64
×
 
＝
4544

(11)

84
×
 
＝
7056

(12)

 
×
67
＝
2345

(13)

 
×
13
＝
1131

(14)

 
×
58
＝
4408

(15)

62
×
 
＝
4588

(16)

94
×
 
＝
3008