2桁同士の乗算

(1)

 
×
71
＝
1704

(2)

79
×
 
＝
4582

(3)

 
×
43
＝
2279

(4)

74
×
 
＝
4366

(5)

28
×
 
＝
1344

(6)

 
×
50
＝
2750

(7)

84
×
 
＝
7644

(8)

36
×
 
＝
2160

(9)

68
×
 
＝
4148

(10)

25
×
 
＝
700

(11)

 
×
45
＝
1935

(12)

 
×
33
＝
3135

(13)

21
×
 
＝
1491

(14)

 
×
68
＝
6392

(15)

 
×
66
＝
3960

(16)

 
×
85
＝
8415