2桁同士の乗算

(1)

47
×
 
＝
4653

(2)

 
×
26
＝
962

(3)

21
×
 
＝
1869

(4)

 
×
29
＝
1827

(5)

 
×
77
＝
3850

(6)

18
×
 
＝
1602

(7)

 
×
58
＝
638

(8)

 
×
42
＝
882

(9)

85
×
 
＝
4420

(10)

31
×
 
＝
1550

(11)

33
×
 
＝
1089

(12)

 
×
19
＝
1748

(13)

 
×
20
＝
820

(14)

82
×
 
＝
3362

(15)

 
×
73
＝
1533

(16)

 
×
86
＝
6364