2桁同士の乗算

(1)

 
×
83
＝
1992

(2)

 
×
47
＝
2961

(3)

50
×
 
＝
4000

(4)

15
×
 
＝
270

(5)

 
×
60
＝
3480

(6)

 
×
36
＝
864

(7)

27
×
 
＝
1890

(8)

 
×
35
＝
560

(9)

 
×
29
＝
2813

(10)

54
×
 
＝
4860

(11)

 
×
71
＝
4118

(12)

 
×
25
＝
2025

(13)

79
×
 
＝
5925

(14)

86
×
 
＝
6794

(15)

37
×
 
＝
3589

(16)

40
×
 
＝
1680