2桁同士の乗算

(1)

 
×
57
＝
4731

(2)

 
×
83
＝
6474

(3)

 
×
76
＝
5244

(4)

32
×
 
＝
384

(5)

66
×
 
＝
2574

(6)

85
×
 
＝
2975

(7)

50
×
 
＝
4250

(8)

29
×
 
＝
1943

(9)

63
×
 
＝
1701

(10)

 
×
89
＝
4895

(11)

 
×
40
＝
600

(12)

88
×
 
＝
1056

(13)

60
×
 
＝
4740

(14)

 
×
50
＝
4700

(15)

11
×
 
＝
891

(16)

40
×
 
＝
1640