2桁と1桁の乗算

(1)

40
×
 
＝
280

(2)

 
×
1
＝
79

(3)

12
×
 
＝
12

(4)

 
×
4
＝
80

(5)

 
×
6
＝
462

(6)

 
×
9
＝
126

(7)

45
×
 
＝
135

(8)

91
×
 
＝
546

(9)

 
×
8
＝
776

(10)

97
×
 
＝
679

(11)

 
×
7
＝
448

(12)

61
×
 
＝
549

(13)

84
×
 
＝
588

(14)

69
×
 
＝
69

(15)

 
×
1
＝
21

(16)

67
×
 
＝
536