2桁同士の乗算

(1)

75
×
 
＝
4500

(2)

 
×
34
＝
1632

(3)

 
×
46
＝
4508

(4)

 
×
69
＝
1242

(5)

 
×
31
＝
3069

(6)

81
×
 
＝
6075

(7)

25
×
 
＝
275

(8)

 
×
21
＝
1869

(9)

 
×
98
＝
7840

(10)

 
×
93
＝
4650

(11)

68
×
 
＝
5712

(12)

32
×
 
＝
3136

(13)

29
×
 
＝
2088

(14)

98
×
 
＝
1470

(15)

67
×
 
＝
3283

(16)

 
×
10
＝
910