2桁同士の乗算

(1)

 
×
28
＝
2520

(2)

 
×
45
＝
4050

(3)

79
×
 
＝
1422

(4)

 
×
94
＝
1974

(5)

29
×
 
＝
899

(6)

69
×
 
＝
3519

(7)

 
×
14
＝
1064

(8)

53
×
 
＝
3763

(9)

 
×
48
＝
1920

(10)

17
×
 
＝
1343

(11)

98
×
 
＝
6958

(12)

55
×
 
＝
1760

(13)

65
×
 
＝
4355

(14)

47
×
 
＝
2679

(15)

17
×
 
＝
340

(16)

54
×
 
＝
1890