2桁同士の乗算

(1)

28
×
 
＝
504

(2)

 
×
32
＝
2848

(3)

81
×
 
＝
2430

(4)

45
×
 
＝
3465

(5)

88
×
 
＝
880

(6)

 
×
20
＝
1380

(7)

 
×
98
＝
8232

(8)

67
×
 
＝
3484

(9)

 
×
28
＝
2576

(10)

 
×
14
＝
1134

(11)

 
×
44
＝
2552

(12)

12
×
 
＝
516

(13)

 
×
26
＝
572

(14)

20
×
 
＝
700

(15)

 
×
11
＝
638

(16)

 
×
46
＝
1104