2桁同士の乗算

(1)

80
×
 
＝
4080

(2)

 
×
76
＝
3344

(3)

45
×
 
＝
3195

(4)

68
×
 
＝
2992

(5)

 
×
68
＝
3332

(6)

60
×
 
＝
2520

(7)

 
×
49
＝
1764

(8)

34
×
 
＝
680

(9)

 
×
53
＝
1749

(10)

88
×
 
＝
5280

(11)

78
×
 
＝
5148

(12)

56
×
 
＝
4648

(13)

 
×
13
＝
1157

(14)

47
×
 
＝
4512

(15)

 
×
87
＝
2175

(16)

32
×
 
＝
352