2桁同士の乗算

(1)

81
×
 
＝
6318

(2)

86
×
 
＝
7998

(3)

 
×
75
＝
1275

(4)

 
×
76
＝
3876

(5)

73
×
 
＝
4818

(6)

14
×
 
＝
770

(7)

41
×
 
＝
3731

(8)

 
×
25
＝
1400

(9)

 
×
11
＝
341

(10)

36
×
 
＝
3168

(11)

 
×
30
＝
2550

(12)

12
×
 
＝
540

(13)

 
×
28
＝
1624

(14)

 
×
70
＝
6510

(15)

85
×
 
＝
4760

(16)

 
×
13
＝
208